If anyone has subbed to his channel already then you will know. For those who have not, I highly recommend checking him out. Just watched this video on Quantum computing and earlier one on Space Elevators.
His stuff is well presented, goes into great detail, very in depth and totally engaging. One of the coolest channels on YouTube.
Quantum Computers:
Check out his Space Elevators video here:
Here is the follow on from Space Elevators, Sky Hooks:
Enjoy folks. Feel free to give him a sub and support his work if you like the content. #IsaacArthur