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I nearly never encounter undetectable dangerous gases or liquids. A simple beeper or probe would do there, no need for a new sense.

Flaky sensors is something else, when a sense breaks down it makes very much sense to replace it.



What about the field of vision? As cars become quieter, I'd love to be able to "sense" one coming from behind, especially when I'm walking in rural roads with small shoulders.


I'd rather have the cars sense me, if we're that sophisticated, and skip the neurosurgery.




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