100k words might be a bit to many for a dictionary of words that are easy to remember. The comic proposes using not enough entropy (i.e. you should use more tha

100k words might be a bit to many for a dictionary of words that are easy to remember. The comic proposes using not enough entropy (i.e. you should use more than four random words). The Schneier method is basically equivalent but with important caveats: 1) Such a phrase is not randomly chosen but follows at minimum basic English grammar and at worst is well-known and thus part of the attacker's dictionary and 2) even if that is taken account for the first letters are not distributed uniformly across the alphabet, you just need to take a look at any (printed) dictionary. That greatly reduces entropy and makes it hard to reliably estimate entropy.