> A model of GPT-3's scale is not going to be trained or run on a laptop.
LOL, yes it is... it's only a matter of time, and not much of it at that. Computing power is making enormous leaps and bounds. Look at GPUs. The leaks coming out of AMD and NVIDIA already point to AMD's 7000 series cards and NVIDIA's 4000 series cards as being somewhere from 2.5x to 3x more powerful than the 6000 and 3000 series cards.
Storage is getting cheap as well. I just bought a decommissioned storage appliance off eBay for $9000. 640 terabyte raw capacity. 1200 watts to operate, so about another $75 a month for electricity.
These dollar figures are very reasonable for just about anyone in the middle class, and certainly reasonable for the demographic of users on this site.