Population of Sirius

[Drake]

Most places seem to rely almost entirely on synth food these days, though there are a few agricultural planets out there which supply some food to entire Houses. Waste is probably incinerated, fired off into a scrap field, or nanomolecularly reprocessed into something else (last is the most likely explanation, in my opinion).

The sleeper ships were huge... I think it's reasonable to assume that each one held thousands at minimum, possibly tens of thousands. Even if each ship only had 500 colonists, if the population doubled every 20 years (not hard to believe, especially since the small colonies would be very much pro-babymaking) then they'd have a population of over 500 million in 400 years. Keeping up the same rate of growth, that'd be about 550 trillion people, for one colony, after 800 years.