The author likely meant "observable universe". 2^300 ~= 2*10^90, and it's estimated that there are around 10^80 atoms in the observable universe[0]. [0] https:

The author likely meant "observable universe". 2^300 ~= 2*10^90, and it's estimated that there are around 10^80 atoms in the observable universe[0]. [0] https://en.wikipedia.org/wiki/Observable_universe#Matter_content https://en.wikipedia.org/wiki/Observable_universe#Matter_con...