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by tinco 3889 days ago
You make it seem silly. But the energy-dense hydrocarbons get combusted in steel/aluminium enclosures that have been battle tested in millions of systems for over 60 years. For it to go wrong billions of atoms need to be displaced at huge energies (much higher than the single combustion).

The ECU however, was probably made ~10 years ago by a team of highly incompetent software developers trained as electronics engineers, with no access to any previous attempts by other companies and progressively getting worse over time (instead of being perfected). To make the ECU do something it wasn't made to do all it needs is a mere low voltage event just enough to flip a crucial bit, and many bits are crucial.

Not that I don't agree that it's silly to not drive cars with an ECU, but just saying that his point has merit.

1 comments

That battle testing also killed millions of people.

Modern cars are vastly safer. Demonstrably so.

Computers in cars may make them more dangerous. But this is far outweighed by the greater overall safety in the cars that have them. You can't buy an otherwise modern car with no computer control, so your choice is either to buy a modern car with computers, or buy an old car without them. If you're avoiding computers then you're buying an old car, and the result is greatly decreased safety.

This is typical human risk management, of course. The mostly imaginary scenario where your ECU goes nuts and causes you to crash helplessly into a concrete barrier is assigned great importance, where the sadly common scenario of some drunk or texting (or drunk texting) idiot killing you in an accident that modern safety design would have allowed you to walk away from is assigned very little importance.

It's much like people who are afraid of flying but are happy to drive, because the thought of plummeting to their death from 30,000 feet is much more vivid than the thought of being randomly run over by a tractor trailer even though the latter is much more likely.

I actually know three people who were run over by a tractor trailer! While I don't know anybody killed in a plane crash.

One was rushed to the hospital with a skull cracked like an eggshell. Almost fully recovered except he can't smell anything.

One had a tractor/trailer fall over while turning a corner, onto his car. He happened to lie in the gap between tractor and trailer, leaving a little uncrushed cell with him in it. No injury.

One was slowing to turn right on a highway; sleepy tractor driver ran fullspeed into the back of his old American car, crushing it utterly up to the back of the front seat. Unhurt. So old American cars have something going for them?

Sounds like any passengers in the rear seat would have been doomed in that last crash. A modern car probably would have fared much better.

Your second story is pretty amazing! Sometimes it's all about luck.