I can never understand how the beast works, though I kinda trust the tech. Investigating the guts of Bitcoin is way too complicated.

Not necessary to understand all the technical details, but I like the challenge. Just understanding that bitcoin is open source code, which means there are a lot of eyes looking for bugs, is enough. And the few bugs there have been, they have been fixed – and they can be fixed on a decentralized system because people likely agree to not run a buggy software.