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427

Evaluating Extraordinary Claims

To demonstrate the problem, I did a simulation where I generated 480 random numbers per subject, representing the 480 time slices in the experiment. I repeated this generation of random numbers 20 times. I compared the send and no-send intervals of random numbers using a T-test; none of the 20 trials found a…

434

Changing Passwords

How often should you change your password? I get asked that question a lot, usually by people annoyed at their employer’s or bank’s password expiration policy: people who finally memorized their current password and are realizing they’ll have to write down their new password. How could that possibly be more secure…