Its a reference to an old he said she said quote attributed to bill gates from the 1990’s

“640K ought to be enough for anyone” — Bill Gate

https://quoteinvestigator.com/2011/09/08/640k-enough/

The moon is roughly 385 megameters away, or 0.4 gigameters!

Do we use MM for megameters and mm for millimeters? i think this might start to get confusing. We should probably clarify a few things before some tradie apprentice builds the galaxy’s largest bookshelf.