On: Mathematics: Came across the following gag. Is it ...

[jbert]

Yes, but that's saying the same thing as "you can write all binary numbers with the digits 0 and 1".

These correspond to choosing a 'book length' of 1 bit.

Each million-bit book is just a number in a base 2^1,000,000

Numbers larger than that require more than one book, just as numbers larger than 1 require more than one binary digit.