I set up WPA encryption on my WLAN today and for a brief moment relived the days of 8-bit Nintendo passwords. I copied down the randomly generated code from a page and copied and pasted it into the router setup menu. I then went to the device and tried to copy it back and quickly was struck prone by the similarities between “1” vs. “l” and “O” vs. “0”. In the 63 character code, 6 such characters created 64 possible combinations. And I got it, after 38 tries. You may be saying “why didn’t you just make a new code?”. I didn’t because I’m a stubborn proto-actuary that thought a knowledge of combinatorics would somehow change probability and inadvertently learned what hubris tastes like.