Sure, when comparing 0’s to anything else. But what about normal distribution to uniform in 0,1? The author hand waves something about signs but it’s not very well reasoned - that’s just a single bit in floats.
And what of the Pi test - I’d expect that to flip many more bits than the 1-bit one.
And what of the Pi test - I’d expect that to flip many more bits than the 1-bit one.