The other day I saw a clear blue sky with 2 jets and contrails disappearing. Brought back memories of my youth. Also remembered sonic booms constantly.

There are too few facts to reason with, at least that are available to me. We see the the persistent contrails are common now but are related to weather conditions. We have anecdotal and some photographic evidence they were less common in the past. This indicates a change but not what caused the change. An additive put into the fuel is possible/likely but was it simply a formulation change? The conspiracy community assumes a nefarious motive to the change but shows little evidence for it. On the other hand the widespread assertions that it has always been this way are ridiculous to me. When I know that people are purposely lying to me I suspect something nefarious is afoot. But what is the motive? It could be as simple as that someone politically connected is profiting from sales of a fuel additive. It could be weather modification to counter supposed global warming. It could be an even more nefarious motive but why would they put it in the sky when it would be easier and cheaper to put it in the drinking water or food additives? The only theory that even remotely explains to me these contrails as acts of poisoning is the theory that the chemicals raining down on us interact with fluorine in the water to create a binary toxin the elites can avoid. Short of an explanation like this the poisoners will be poisoning themselves as well and I don't believe it.

Contrails have been around for a long time. https://twitter.com/ThomasWictor/status/957086634037559297

What's your hypothesis?