This is what I wrote on the day I published this note:

1 - base

2 - contact lists

3 - ots

4 - encrypted dms

5 - deletion?

6 - HD keys

7 - browser extension

8 - that #[0] thing?

9 - don't know

10 - how to mention people

11 - relay information

12 - don't know

13 - pow

14 - is there even such a thing?

15 - markets

16 - deleted

17 - doesn't exist

18 - likes

19 - bech32

20 - no idea

21 - nostr: urls

22 - something about timestamps that got deleted

23 - markdown articles

24 - don't know

25 - reposts?

26 - broken delegation

27 - replacement to nip-08

28 - groups that don't work

29 - unpublished nip for groups that will work

30 - emojis

31 - "alt" tag

32 - hodlbod's categorization of the entire universe

33 - no idea

40 - expiration?

41 - key substitution thing

42 - AUTH

43 - nothing

44 - new encryption stuff

45 - COUNT

46 - nostr-connect

47 - nostr-wallet-connect

50 - search

51 - lists

65 - relay lists

72 - communities that don't work

89 - client handlers and recommendations

94 - image metadata