Mark on Nostr: I know Bitcoin pretty well. I am not trolling. The though I currently play with is ...

I know Bitcoin pretty well. I am not trolling. The though I currently play with is that there is always a minority of people we trust our funds with: either the government and the central banks (which are - in the end - organizations of humans) or algorithms, which run on computers. We can just decide whom we trust more, if we buy Bitcoin with fiat we reveal that we trust the Bitcoin elite more than the central bank elite.

However ... the bitcoin code is written and maintained by _humans_, and the nodes are also operated by humans. All the electronics are just helpful, we can also do the Bitcoin algorithm on paper, but it won't be feasible.
You say "if they sent a bad update I would not use it" great, but what about the not-that-tech-savy guy, who just runs his raspiblitz, umbrel node, or has bought a node from blockstream or whatever? Probably with auto updates enabled. Practically the node is then not operated by the not-that-tech-savy guy - it just runs in his closet or something - but is operated by the maintainers of raspiblitz, umbrel, or whomever.