I was using a 6ish year old amd cpu with 16gigs of ram and generating a prompt would take about a half hour. Which is still massively impressive for what it is.
yes, and if he does it on a paid machine with a better GPU it'll be even faster!
While true, neither your statement or mine above is germane to the discussion. It wasn't about how long it takes. It's a discussion of how cool it is that it can be done on that machine at all.
On 21 April 2023 Google blocked usage of Stable Diffusion with a free account on colab. You need a paid plan to use it.
Apparently there are ways around it, but I just switched to runpod.io. It's very cheap (around $0.80/h for a 4090 including storage) and having a real terminal is worth it.