Thanks to millennials, 'Murica is a joke.
Maybe on that side of the pond, but it wasn't the millennials or generation z that voted for Brexit.
But with that convenience you lose a lot of efficiency compared to leaving everything as electricity.
How do you carry a tank of electricity around in your vehicle without converting it to some other form? Did you invent cheap room-temperature superconductors and forget to tell anyone?
How much your bank is charging for $20 transfer to bank account in Europe?
I'm in the UK and my bank supports SWIFT and IBAN transfers with no fees (though the receiving bank will typically impose currency conversion fees).
No, the operating system is supposed to prevent one process from interfering with another. When an app has multiple security domains then it's up to the app developer to do compartmentalisation. OpenSSH has done this for over a decade, most browsers have done it for quite a few years. Current hardware doesn't provide good mechanisms for doing fine-grained isolation within a single OS process.
 The project that I work on aims to address this limitation.
PayPal has strong buyer protections
Hahahahaha! Oh, you're serious? That's hilarious. At least in the EU, if you buy something using PayPal with your credit card, then you have far more protection from the credit card than from PayPal.
"The following is not for the weak of heart or Fundamentalists." -- Dave Barry