docs: correction on weak subjectivity

[matthewkeil]

Motivation

Moved from #5557 . Credit to @eccentricexit. Closing #5557

There is incorrect information on the documentation. Weak subjectivity is not a path to execute long range attacs.

Description

This is just a really small documentation correction.

[github-actions]

Performance Report

✔️ no performance regression detected

Full benchmark results

Benchmark suite	Current: 1eb1b62	Previous: a208afb	Ratio
getPubkeys - index2pubkey - req 1000 vs - 250000 vc	968.13 us/op	816.44 us/op	1.19
getPubkeys - validatorsArr - req 1000 vs - 250000 vc	50.315 us/op	46.294 us/op	1.09
BLS verify - blst-native	1.2109 ms/op	1.2151 ms/op	1.00
BLS verifyMultipleSignatures 3 - blst-native	2.4675 ms/op	2.4652 ms/op	1.00
BLS verifyMultipleSignatures 8 - blst-native	5.2975 ms/op	5.2976 ms/op	1.00
BLS verifyMultipleSignatures 32 - blst-native	19.217 ms/op	19.152 ms/op	1.00
BLS aggregatePubkeys 32 - blst-native	25.499 us/op	25.886 us/op	0.99
BLS aggregatePubkeys 128 - blst-native	100.20 us/op	100.04 us/op	1.00
getAttestationsForBlock	55.635 ms/op	56.262 ms/op	0.99
isKnown best case - 1 super set check	249.00 ns/op	263.00 ns/op	0.95
isKnown normal case - 2 super set checks	246.00 ns/op	261.00 ns/op	0.94
isKnown worse case - 16 super set checks	244.00 ns/op	258.00 ns/op	0.95
CheckpointStateCache - add get delete	5.3590 us/op	5.3160 us/op	1.01
validate gossip signedAggregateAndProof - struct	2.7628 ms/op	2.8217 ms/op	0.98
validate gossip attestation - struct	1.3110 ms/op	1.3492 ms/op	0.97
pickEth1Vote - no votes	1.2950 ms/op	1.3552 ms/op	0.96
pickEth1Vote - max votes	8.5553 ms/op	8.6700 ms/op	0.99
pickEth1Vote - Eth1Data hashTreeRoot value x2048	8.6729 ms/op	8.5185 ms/op	1.02
pickEth1Vote - Eth1Data hashTreeRoot tree x2048	13.114 ms/op	15.017 ms/op	0.87
pickEth1Vote - Eth1Data fastSerialize value x2048	675.00 us/op	707.88 us/op	0.95
pickEth1Vote - Eth1Data fastSerialize tree x2048	4.6488 ms/op	7.1009 ms/op	0.65
bytes32 toHexString	485.00 ns/op	554.00 ns/op	0.88
bytes32 Buffer.toString(hex)	341.00 ns/op	418.00 ns/op	0.82
bytes32 Buffer.toString(hex) from Uint8Array	528.00 ns/op	635.00 ns/op	0.83
bytes32 Buffer.toString(hex) + 0x	349.00 ns/op	394.00 ns/op	0.89
Object access 1 prop	0.16300 ns/op	0.19000 ns/op	0.86
Map access 1 prop	0.15500 ns/op	0.16500 ns/op	0.94
Object get x1000	6.4550 ns/op	7.1970 ns/op	0.90
Map get x1000	0.63800 ns/op	0.65800 ns/op	0.97
Object set x1000	59.941 ns/op	63.017 ns/op	0.95
Map set x1000	54.220 ns/op	52.610 ns/op	1.03
Return object 10000 times	0.24010 ns/op	0.26290 ns/op	0.91
Throw Error 10000 times	4.2504 us/op	4.4858 us/op	0.95
fastMsgIdFn sha256 / 200 bytes	3.5700 us/op	3.6600 us/op	0.98
fastMsgIdFn h32 xxhash / 200 bytes	300.00 ns/op	333.00 ns/op	0.90
fastMsgIdFn h64 xxhash / 200 bytes	450.00 ns/op	495.00 ns/op	0.91
fastMsgIdFn sha256 / 1000 bytes	11.691 us/op	12.515 us/op	0.93
fastMsgIdFn h32 xxhash / 1000 bytes	433.00 ns/op	457.00 ns/op	0.95
fastMsgIdFn h64 xxhash / 1000 bytes	520.00 ns/op	547.00 ns/op	0.95
fastMsgIdFn sha256 / 10000 bytes	103.60 us/op	110.05 us/op	0.94
fastMsgIdFn h32 xxhash / 10000 bytes	1.9760 us/op	2.2260 us/op	0.89
fastMsgIdFn h64 xxhash / 10000 bytes	1.4180 us/op	1.5270 us/op	0.93
enrSubnets - fastDeserialize 64 bits	1.3520 us/op	1.4530 us/op	0.93
enrSubnets - ssz BitVector 64 bits	514.00 ns/op	606.00 ns/op	0.85
enrSubnets - fastDeserialize 4 bits	182.00 ns/op	205.00 ns/op	0.89
enrSubnets - ssz BitVector 4 bits	577.00 ns/op	640.00 ns/op	0.90
prioritizePeers score -10:0 att 32-0.1 sync 2-0	118.40 us/op	118.85 us/op	1.00
prioritizePeers score 0:0 att 32-0.25 sync 2-0.25	142.35 us/op	162.14 us/op	0.88
prioritizePeers score 0:0 att 32-0.5 sync 2-0.5	181.36 us/op	193.63 us/op	0.94
prioritizePeers score 0:0 att 64-0.75 sync 4-0.75	325.37 us/op	359.73 us/op	0.90
prioritizePeers score 0:0 att 64-1 sync 4-1	414.10 us/op	467.24 us/op	0.89
array of 16000 items push then shift	1.7055 us/op	1.8918 us/op	0.90
LinkedList of 16000 items push then shift	10.441 ns/op	10.074 ns/op	1.04
array of 16000 items push then pop	112.37 ns/op	123.72 ns/op	0.91
LinkedList of 16000 items push then pop	8.6940 ns/op	9.2460 ns/op	0.94
array of 24000 items push then shift	2.2997 us/op	2.5396 us/op	0.91
LinkedList of 24000 items push then shift	10.968 ns/op	9.2170 ns/op	1.19
array of 24000 items push then pop	81.580 ns/op	78.854 ns/op	1.03
LinkedList of 24000 items push then pop	8.7800 ns/op	9.2680 ns/op	0.95
intersect bitArray bitLen 8	13.673 ns/op	14.199 ns/op	0.96
intersect array and set length 8	111.92 ns/op	85.083 ns/op	1.32
intersect bitArray bitLen 128	44.369 ns/op	47.892 ns/op	0.93
intersect array and set length 128	1.3218 us/op	1.2012 us/op	1.10
Buffer.concat 32 items	3.0710 us/op	3.1160 us/op	0.99
Uint8Array.set 32 items	3.1270 us/op	2.6370 us/op	1.19
transfer serialized Status (84 B)	2.2930 us/op	2.2120 us/op	1.04
copy serialized Status (84 B)	1.9490 us/op	1.8260 us/op	1.07
transfer serialized SignedVoluntaryExit (112 B)	2.5250 us/op	2.3180 us/op	1.09
copy serialized SignedVoluntaryExit (112 B)	1.8230 us/op	2.0320 us/op	0.90
transfer serialized ProposerSlashing (416 B)	2.4940 us/op	2.8210 us/op	0.88
copy serialized ProposerSlashing (416 B)	2.2560 us/op	3.1570 us/op	0.71
transfer serialized Attestation (485 B)	2.5150 us/op	2.9220 us/op	0.86
copy serialized Attestation (485 B)	2.5190 us/op	2.5130 us/op	1.00
transfer serialized AttesterSlashing (33232 B)	3.0000 us/op	2.9550 us/op	1.02
copy serialized AttesterSlashing (33232 B)	6.7410 us/op	6.7140 us/op	1.00
transfer serialized Small SignedBeaconBlock (128000 B)	3.2090 us/op	3.5200 us/op	0.91
copy serialized Small SignedBeaconBlock (128000 B)	16.216 us/op	14.702 us/op	1.10
transfer serialized Avg SignedBeaconBlock (200000 B)	3.9350 us/op	3.6620 us/op	1.07
copy serialized Avg SignedBeaconBlock (200000 B)	23.691 us/op	22.309 us/op	1.06
transfer serialized BlobsSidecar (524380 B)	3.2200 us/op	3.6730 us/op	0.88
copy serialized BlobsSidecar (524380 B)	126.65 us/op	170.49 us/op	0.74
transfer serialized Big SignedBeaconBlock (1000000 B)	3.4390 us/op	4.0630 us/op	0.85
copy serialized Big SignedBeaconBlock (1000000 B)	164.93 us/op	289.00 us/op	0.57
pass gossip attestations to forkchoice per slot	2.6836 ms/op	2.8638 ms/op	0.94
forkChoice updateHead vc 100000 bc 64 eq 0	2.0684 ms/op	2.1249 ms/op	0.97
forkChoice updateHead vc 600000 bc 64 eq 0	11.961 ms/op	12.022 ms/op	0.99
forkChoice updateHead vc 1000000 bc 64 eq 0	22.931 ms/op	23.707 ms/op	0.97
forkChoice updateHead vc 600000 bc 320 eq 0	17.057 ms/op	17.998 ms/op	0.95
forkChoice updateHead vc 600000 bc 1200 eq 0	92.042 ms/op	88.577 ms/op	1.04
forkChoice updateHead vc 600000 bc 64 eq 1000	21.313 ms/op	21.368 ms/op	1.00
forkChoice updateHead vc 600000 bc 64 eq 10000	23.356 ms/op	23.551 ms/op	0.99
forkChoice updateHead vc 600000 bc 64 eq 300000	76.030 ms/op	32.167 ms/op	2.36
computeDeltas	3.1393 ms/op	3.6116 ms/op	0.87
computeProposerBoostScoreFromBalances	1.7901 ms/op	1.9292 ms/op	0.93
altair processAttestation - 250000 vs - 7PWei normalcase	2.9390 ms/op	3.1373 ms/op	0.94
altair processAttestation - 250000 vs - 7PWei worstcase	4.2749 ms/op	4.7994 ms/op	0.89
altair processAttestation - setStatus - 1/6 committees join	146.96 us/op	157.35 us/op	0.93
altair processAttestation - setStatus - 1/3 committees join	279.85 us/op	302.95 us/op	0.92
altair processAttestation - setStatus - 1/2 committees join	363.77 us/op	430.62 us/op	0.84
altair processAttestation - setStatus - 2/3 committees join	469.04 us/op	502.34 us/op	0.93
altair processAttestation - setStatus - 4/5 committees join	662.24 us/op	809.01 us/op	0.82
altair processAttestation - setStatus - 100% committees join	755.76 us/op	917.22 us/op	0.82
altair processBlock - 250000 vs - 7PWei normalcase	17.658 ms/op	19.850 ms/op	0.89
altair processBlock - 250000 vs - 7PWei normalcase hashState	24.778 ms/op	27.696 ms/op	0.89
altair processBlock - 250000 vs - 7PWei worstcase	50.792 ms/op	57.765 ms/op	0.88
altair processBlock - 250000 vs - 7PWei worstcase hashState	73.514 ms/op	79.888 ms/op	0.92
phase0 processBlock - 250000 vs - 7PWei normalcase	1.9566 ms/op	2.2065 ms/op	0.89
phase0 processBlock - 250000 vs - 7PWei worstcase	27.253 ms/op	34.406 ms/op	0.79
altair processEth1Data - 250000 vs - 7PWei normalcase	465.46 us/op	497.79 us/op	0.94
getExpectedWithdrawals 250000 eb:1,eth1:1,we:0,wn:0,smpl:15	7.3830 us/op	7.9140 us/op	0.93
getExpectedWithdrawals 250000 eb:0.95,eth1:0.1,we:0.05,wn:0,smpl:219	25.128 us/op	24.055 us/op	1.04
getExpectedWithdrawals 250000 eb:0.95,eth1:0.3,we:0.05,wn:0,smpl:42	9.2660 us/op	13.172 us/op	0.70
getExpectedWithdrawals 250000 eb:0.95,eth1:0.7,we:0.05,wn:0,smpl:18	7.0930 us/op	7.1700 us/op	0.99
getExpectedWithdrawals 250000 eb:0.1,eth1:0.1,we:0,wn:0,smpl:1020	92.663 us/op	100.08 us/op	0.93
getExpectedWithdrawals 250000 eb:0.03,eth1:0.03,we:0,wn:0,smpl:11777	643.12 us/op	791.27 us/op	0.81
getExpectedWithdrawals 250000 eb:0.01,eth1:0.01,we:0,wn:0,smpl:16384	901.13 us/op	938.97 us/op	0.96
getExpectedWithdrawals 250000 eb:0,eth1:0,we:0,wn:0,smpl:16384	863.27 us/op	934.13 us/op	0.92
getExpectedWithdrawals 250000 eb:0,eth1:0,we:0,wn:0,nocache,smpl:16384	2.3870 ms/op	3.1501 ms/op	0.76
getExpectedWithdrawals 250000 eb:0,eth1:1,we:0,wn:0,smpl:16384	1.5366 ms/op	1.8368 ms/op	0.84
getExpectedWithdrawals 250000 eb:0,eth1:1,we:0,wn:0,nocache,smpl:16384	3.8254 ms/op	5.0921 ms/op	0.75
Tree 40 250000 create	350.12 ms/op	432.16 ms/op	0.81
Tree 40 250000 get(125000)	185.12 ns/op	217.79 ns/op	0.85
Tree 40 250000 set(125000)	1.0307 us/op	1.1860 us/op	0.87
Tree 40 250000 toArray()	21.613 ms/op	24.402 ms/op	0.89
Tree 40 250000 iterate all - toArray() + loop	21.600 ms/op	24.516 ms/op	0.88
Tree 40 250000 iterate all - get(i)	73.771 ms/op	82.194 ms/op	0.90
MutableVector 250000 create	9.7398 ms/op	13.592 ms/op	0.72
MutableVector 250000 get(125000)	6.3300 ns/op	7.7770 ns/op	0.81
MutableVector 250000 set(125000)	261.37 ns/op	308.06 ns/op	0.85
MutableVector 250000 toArray()	2.8234 ms/op	3.7496 ms/op	0.75
MutableVector 250000 iterate all - toArray() + loop	3.0128 ms/op	4.1234 ms/op	0.73
MutableVector 250000 iterate all - get(i)	1.5421 ms/op	1.7789 ms/op	0.87
Array 250000 create	2.6258 ms/op	3.7051 ms/op	0.71
Array 250000 clone - spread	1.1895 ms/op	1.5088 ms/op	0.79
Array 250000 get(125000)	0.57200 ns/op	0.93600 ns/op	0.61
Array 250000 set(125000)	0.65400 ns/op	0.89300 ns/op	0.73
Array 250000 iterate all - loop	105.93 us/op	116.11 us/op	0.91
effectiveBalanceIncrements clone Uint8Array 300000	30.118 us/op	49.209 us/op	0.61
effectiveBalanceIncrements clone MutableVector 300000	369.00 ns/op	414.00 ns/op	0.89
effectiveBalanceIncrements rw all Uint8Array 300000	166.38 us/op	184.02 us/op	0.90
effectiveBalanceIncrements rw all MutableVector 300000	83.980 ms/op	160.78 ms/op	0.52
phase0 afterProcessEpoch - 250000 vs - 7PWei	112.93 ms/op	138.73 ms/op	0.81
phase0 beforeProcessEpoch - 250000 vs - 7PWei	33.955 ms/op	54.400 ms/op	0.62
altair processEpoch - mainnet_e81889	327.69 ms/op	418.42 ms/op	0.78
mainnet_e81889 - altair beforeProcessEpoch	66.571 ms/op	100.92 ms/op	0.66
mainnet_e81889 - altair processJustificationAndFinalization	19.493 us/op	39.354 us/op	0.50
mainnet_e81889 - altair processInactivityUpdates	5.0648 ms/op	8.1918 ms/op	0.62
mainnet_e81889 - altair processRewardsAndPenalties	51.564 ms/op	87.563 ms/op	0.59
mainnet_e81889 - altair processRegistryUpdates	2.5040 us/op	5.9890 us/op	0.42
mainnet_e81889 - altair processSlashings	459.00 ns/op	1.4540 us/op	0.32
mainnet_e81889 - altair processEth1DataReset	495.00 ns/op	1.4880 us/op	0.33
mainnet_e81889 - altair processEffectiveBalanceUpdates	1.1848 ms/op	4.6905 ms/op	0.25
mainnet_e81889 - altair processSlashingsReset	5.1450 us/op	14.240 us/op	0.36
mainnet_e81889 - altair processRandaoMixesReset	4.7550 us/op	6.6500 us/op	0.72
mainnet_e81889 - altair processHistoricalRootsUpdate	744.00 ns/op	2.4640 us/op	0.30
mainnet_e81889 - altair processParticipationFlagUpdates	2.5200 us/op	8.3850 us/op	0.30
mainnet_e81889 - altair processSyncCommitteeUpdates	481.00 ns/op	1.5200 us/op	0.32
mainnet_e81889 - altair afterProcessEpoch	116.82 ms/op	164.05 ms/op	0.71
phase0 processEpoch - mainnet_e58758	313.88 ms/op	503.21 ms/op	0.62
mainnet_e58758 - phase0 beforeProcessEpoch	122.20 ms/op	211.00 ms/op	0.58
mainnet_e58758 - phase0 processJustificationAndFinalization	15.977 us/op	25.647 us/op	0.62
mainnet_e58758 - phase0 processRewardsAndPenalties	52.446 ms/op	79.361 ms/op	0.66
mainnet_e58758 - phase0 processRegistryUpdates	8.2050 us/op	17.987 us/op	0.46
mainnet_e58758 - phase0 processSlashings	530.00 ns/op	1.4440 us/op	0.37
mainnet_e58758 - phase0 processEth1DataReset	540.00 ns/op	847.00 ns/op	0.64
mainnet_e58758 - phase0 processEffectiveBalanceUpdates	940.10 us/op	1.4087 ms/op	0.67
mainnet_e58758 - phase0 processSlashingsReset	2.8140 us/op	7.7880 us/op	0.36
mainnet_e58758 - phase0 processRandaoMixesReset	4.3920 us/op	10.193 us/op	0.43
mainnet_e58758 - phase0 processHistoricalRootsUpdate	675.00 ns/op	1.8500 us/op	0.36
mainnet_e58758 - phase0 processParticipationRecordUpdates	7.1460 us/op	7.8540 us/op	0.91
mainnet_e58758 - phase0 afterProcessEpoch	92.914 ms/op	122.30 ms/op	0.76
phase0 processEffectiveBalanceUpdates - 250000 normalcase	1.2351 ms/op	1.5551 ms/op	0.79
phase0 processEffectiveBalanceUpdates - 250000 worstcase 0.5	1.4806 ms/op	1.6595 ms/op	0.89
altair processInactivityUpdates - 250000 normalcase	19.587 ms/op	25.836 ms/op	0.76
altair processInactivityUpdates - 250000 worstcase	21.807 ms/op	27.493 ms/op	0.79
phase0 processRegistryUpdates - 250000 normalcase	6.1750 us/op	8.3560 us/op	0.74
phase0 processRegistryUpdates - 250000 badcase_full_deposits	231.89 us/op	289.55 us/op	0.80
phase0 processRegistryUpdates - 250000 worstcase 0.5	120.68 ms/op	141.76 ms/op	0.85
altair processRewardsAndPenalties - 250000 normalcase	55.478 ms/op	71.832 ms/op	0.77
altair processRewardsAndPenalties - 250000 worstcase	47.253 ms/op	78.510 ms/op	0.60
phase0 getAttestationDeltas - 250000 normalcase	6.2206 ms/op	8.3068 ms/op	0.75
phase0 getAttestationDeltas - 250000 worstcase	6.1941 ms/op	7.2078 ms/op	0.86
phase0 processSlashings - 250000 worstcase	3.2801 ms/op	4.1729 ms/op	0.79
altair processSyncCommitteeUpdates - 250000	178.30 ms/op	198.47 ms/op	0.90
BeaconState.hashTreeRoot - No change	254.00 ns/op	376.00 ns/op	0.68
BeaconState.hashTreeRoot - 1 full validator	48.969 us/op	55.154 us/op	0.89
BeaconState.hashTreeRoot - 32 full validator	468.00 us/op	611.82 us/op	0.76
BeaconState.hashTreeRoot - 512 full validator	5.2833 ms/op	5.7844 ms/op	0.91
BeaconState.hashTreeRoot - 1 validator.effectiveBalance	61.225 us/op	79.440 us/op	0.77
BeaconState.hashTreeRoot - 32 validator.effectiveBalance	852.29 us/op	969.03 us/op	0.88
BeaconState.hashTreeRoot - 512 validator.effectiveBalance	11.167 ms/op	13.342 ms/op	0.84
BeaconState.hashTreeRoot - 1 balances	45.769 us/op	56.077 us/op	0.82
BeaconState.hashTreeRoot - 32 balances	438.28 us/op	545.17 us/op	0.80
BeaconState.hashTreeRoot - 512 balances	4.2529 ms/op	4.8891 ms/op	0.87
BeaconState.hashTreeRoot - 250000 balances	72.392 ms/op	84.624 ms/op	0.86
aggregationBits - 2048 els - zipIndexesInBitList	16.774 us/op	18.165 us/op	0.92
regular array get 100000 times	32.429 us/op	48.003 us/op	0.68
wrappedArray get 100000 times	40.333 us/op	36.208 us/op	1.11
arrayWithProxy get 100000 times	15.129 ms/op	18.806 ms/op	0.80
ssz.Root.equals	517.00 ns/op	648.00 ns/op	0.80
byteArrayEquals	511.00 ns/op	635.00 ns/op	0.80
shuffle list - 16384 els	6.5748 ms/op	7.1492 ms/op	0.92
shuffle list - 250000 els	96.276 ms/op	104.03 ms/op	0.93
processSlot - 1 slots	8.4030 us/op	9.4190 us/op	0.89
processSlot - 32 slots	1.3026 ms/op	1.4028 ms/op	0.93
getEffectiveBalanceIncrementsZeroInactive - 250000 vs - 7PWei	32.973 ms/op	37.577 ms/op	0.88
getCommitteeAssignments - req 1 vs - 250000 vc	2.7955 ms/op	3.0118 ms/op	0.93
getCommitteeAssignments - req 100 vs - 250000 vc	3.9691 ms/op	4.2533 ms/op	0.93
getCommitteeAssignments - req 1000 vs - 250000 vc	4.3425 ms/op	4.5951 ms/op	0.95
RootCache.getBlockRootAtSlot - 250000 vs - 7PWei	4.6800 ns/op	4.3000 ns/op	1.09
state getBlockRootAtSlot - 250000 vs - 7PWei	929.69 ns/op	924.74 ns/op	1.01
computeProposers - vc 250000	10.720 ms/op	10.781 ms/op	0.99
computeEpochShuffling - vc 250000	100.26 ms/op	104.74 ms/op	0.96
getNextSyncCommittee - vc 250000	176.19 ms/op	180.65 ms/op	0.98
computeSigningRoot for AttestationData	13.738 us/op	14.154 us/op	0.97
hash AttestationData serialized data then Buffer.toString(base64)	2.4475 us/op	2.4775 us/op	0.99
toHexString serialized data	1.0959 us/op	1.0962 us/op	1.00
Buffer.toString(base64)	319.58 ns/op	328.42 ns/op	0.97

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