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Today’s demonstration in Lebanon should raise red flags: Are water bottles or computers the greater threat? Do computers or phones have to be on to receive the signal that causes detonation? If not, will airlines ever accept such electronics in carry-on or cargo? If Wi-Fi is necessary to transmit the signal, is that the end of Wi-Fi on flights? And if passengers cannot do work on an aircraft, will they even fly or turn to video conferencing?
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The Great Pager Detonation: The End of Phones and Computers on Airplanes?
Today’s demonstration in Lebanon should raise red flags: Are water bottles or computers the greater threat? Do computers or phones have to be on to receive the signal that causes detonation?

Same could apply to trains, buses and boats I suppose...