So, plenty of us have probably heard about the recent hot car death that will probably become a hugely controversial media circus that everyone will forget about in a few months. I don't know whether the death was intentional or not, but I hope the court makes the correct decision either way. I don't want to kick this off with a discussion of whether or not the parents should be punished. Instead, I want to consider realistic ways to avoid this sort of thing. Sure, some middle-school student came up with a knee-jerk "solution" that would work in theory, but the fact is that no one at all would have the patience to deal with that device every day. Cars are getting smarter, and I see no reason why a "smart" approach to this isn't feasible. My idea can be described by the following algorithm: Precondition: Key is removed from ignition. 1) Check temperature. Temperature > THRESHOLD ? YES: Go to step 2. NO: Go to step 3. 2) Check for (noninsect) life in car. The detector is a black box, and might not be cheap. But, this sort of problem has been solved for more difficult situations than this. Was anything living found? YES: Activate some sort of alarm, perhaps PANIC mode and a radio signal. Remain in this step until manually disabled. NO: Proceed to step 3. 3) Wait X seconds and return to step 1. I believe that this is a perfectly feasible system, and it (or some equivalent solution) should find its way into all modern vehicles. What do you think?