Just discovered Issac's videos a few days ago while trying to anticipate the practical approaches of humanity's solar system expansion through the 21st-22nd centuries. Ultimately, I'd like to shape my career to help accelerate that progress, so it helps to have a such a great roadmap in the form of Outward Bound / Upward Bound series!
I started poking through the About section to figure out if Issac was a one-man army producing all these, but was pleasantly surprised to find a whole production team and budding community! SFIA is seriously awesome stuff, unparalleled in depth of niche info, fun video productions (with great musical selection!), and humble, thoughtful, presentation. I thought it was all Isaac, but hats off to the production team for all the awesomeness!