Them: Can you confirm you have no more than 15 personal electronic devices in your carry on?
Me: (excitedly infodumping) Well, it really depends what you consider to be a device. Many of these computers themselves contain multiple smaller computers. Consider these microSD cards (waves a small anti-static bag around), each of which has a tiny ARM processor - designed by a trans person from the BBC Micro team, if I might go off at a tangent for a moment. Or the battery controller chip on the LiPo pouch protection circuit, which significantly reduces the probability of a thermal excursion. And let's face it, nobody wants a spicy pillow in their lap at 30,000 feet-
Them: Just say yes. (Pleadingly) Just yes. That's all I'm asking. I'm begging you.
@matrix Ooh, that's an interesting one - I did kind of wonder the extent to which this is really all about batteries. Checks airline conditions of carriage... 20 spare lithium batteries, provided they do not exceed 100Wh each