I'm currently a research assistant in a neuroscience lab at MIT and I'm considering pursuing a PhD in math or theoretical computer science. The RAs in my lab who want to eventually become neuroscientists are in a perfect place - a large, collaborative environment where they get paid to work closely with neuroscientists and learn hands on what the entire research process is like in that field before committing to a 5 year grad program.
I want an environment as close to this as possible in math or theoretical computer science to solidify my belief that I would be happy pursuing research in these areas. Is this kind of opportunity available in these fields? What is the closest I can get? I did an REU program in undergrad and loved it, but want more if it's out there.
Thank you so much for your advice, this is a great community.