BTW I am old enough to abandon all pre-2G phones (1G internet protocol was called CSD at the times) because that protocol can not meet handshake timeout for HTTPS!

MicroUSB is my favorite standard but its wire breaks once per few months if to use it every day indoor and outdoor without care.

Second-best connection standard is those we have seen in Nokia S60 and in SE of pre-Android era. I hated those when I used it back in the time because it needed a regular cleening. But now I can see that both the socket and the wire are absolutely immortal, just the contact group hates any dirt.

Bluetooth is great because it works everywhere and consumes very little of energy, but sometimes it just refuses to work. Also proprietary nature gives me a hard time when I replaced the radio board in PC without reinstalling OS, all my devices just stop worked because the software stores somewhere the information about old connection which involved the previous radio board.

But the point of Stoicism is another one. Just live without as much as you can. Even a stainless steel shovel can break. Be OK with that, complains will not fix your hardware.

I suppose a pentode or a valve working with the grid current is not easy to demonstrate. And I believe no electrical engineer is a real one until he groks the valve theory.