I have been following this series since it began, and it's just magical for the sort of nerds who have consumed all of the surface-level documentaries and books about Apollo, especially if you have an interest in electronics engineering, computer science, or radio communications. It's a genre that's distinct to YouTube--something I fear going away every time YouTube tries to chase TikTok and Instagram trends.Marc, Ken, and their team are national treasures. I'm absolutely blown away at the depth and breadth of what they have accomplished in this series.