4 ms·even if you're preserving blocks of 3, 17! is a big number. it's not 10^44, but still, 10^14 is pretty big.by jfoutz 15y agoeven if you're preserving blocks of 3, 17! is a big number. it's not 10^44, but still, 10^14 is pretty big.grandalf 15y agoHow many amateurish shuffles would it take to randomize a deck?tel 15y agoIt's a 10 letter password in [a-z]. 8 letter in [A-Za-z]. It's 47 fair coin flips.Retric 15y agoOr 1 deck per day for 7 billion people for 40 years.gaius 15y agoI do use the cards metaphor for passwords: http://github.com/gaiustech/MkPasswd http://github.com/gaiustech/MkPasswd