Exactly. As a thought experiment, it's fairly trivial to set up an OTP communications scheme - like doing one from scratch in less time than it takes to order

Exactly. As a thought experiment, it's fairly trivial to set up an OTP communications scheme - like doing one from scratch in less time than it takes to order a pizza. It's traditionally been low-bandwidth, but as storage shrinks, sneakernetting enough material for high bandwidth use becomes much simpler. I can only imagine that practical OTP will be the penultimate step in the crypto wars. As far as brute-force for E2E, logjam is a great example, but I'm guessing there's a new state of the art.