Spectrum? Lots of cable internet right now has upstream limitations, but fiber is making it to more homes and upstream limitations are (slowly) improving on ca

Spectrum? Lots of cable internet right now has upstream limitations, but fiber is making it to more homes and upstream limitations are (slowly) improving on cable. As a society we have something like a 20% CAGR on upstream speeds over the past few years. It may get better even faster, because DOCSIS 4 is coming soon and is full duplex over the same channels. But even at 20mbps, uploading a 70B model might take you 12 hours... after you spent many hours fine-tuning it. It's annoying but not an unmanageable problem.