What is the definition of Trains Experiments?

"Trains experiments" is like when scientists decide to push the boundaries of ethics, sanity, and sanity itself, but with a bunch of toy trains and cardboard boxes. It's the term for conducting tests that are so outrageously risky, they might just cause a train wreck of consequences, both literal and metaphorical.

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Here's an edgy example: "We trained our experiments on the ethics of abandoning a runaway train of existential dread."