This is kind of a back to his roots movement for my brother. He concentrated on parallel processing while he was in school in the 80's and early 90's. Then worked on autonomous behaviors in the late 90's and early 00's. He just finished a paper he has been thinking about for years, and now that he finished that up he decided to start getting more into machine learning. All way over my head...
I decided I needed to talk to him about hardware though. So much for a surprise. I need to know if he would rather have a low end $2,000-$2,500 complete workstation he can use now and maybe add a second GPU to later, or start collecting parts for a more expensive 4x GPU workstation later.