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The original was posted on /r/okbuddyphd by /u/skourby on 2025-07-01 22:52:21+00:00.

The engineer in question is a 35 year old MIT graduate with dual PhD’s in Electrical engineering and Materials Science/Engineering. Let’s also say he is fluent in whatever language he’s being sent and encounters relatively kind people who help him with his immediate survival. The main obstacle to be discussed here is the lack of materials/technology. Not if he gets stabbed, starves, or freezes.

He will die of natural causes at the age of 60. In the meantime, what is the most advanced piece of electrical technology someone could concievably develop with the materials he has at the moment.

Round 1: He’s sent to Philadelphia in 1750

Round 2: He’s sent to London in 1066.

Round 3: He’s sent to Rome in 117 AD

Round 4: He’s sent to Babylon in 1750 BC