I was at a party a few weeks ago and met a self-proclaimed chemtrail activist. First person (other than my conspiracy-believing family member) I've met in real life who believes in chemtrails. We had a cordial exchange. I think this person was surprised that I knew so many of the talking points and had responses for them. The one talking point that I hadn't heard before is that there are now luggage restrictions on planes to make room for the chemtrail chemicals. As "evidence" she asked why there never used to be luggage restrictions. I and someone else who was in the conversation commented on how planes nowadays are always booked to capacity whereas decades ago it wasn't uncommon to be able to find several seats in a row where you could stretch out and take a nap. We of course parted ways without changing each others minds.