Facebook post reads “Wow, that's a lot of planes!? I see them here in NY too. Water vapor occurs between a differential of 33degrees and lasts only as long as that differential is maintained. Blood temp is at a dew point of 98.6 degrees. You can't maintain a dew point on open atmosphere for more than a minute or 2 before it turns into water vapor and settles on the grass or your car-"dew point". Visible condensation can't last in any visible time scale. What you're looking at is aluminum barium aerosol. Just my opinion”
From Facebook. This is my favourite explanation yet of why contrails can’t persist in the sky. 🤔
Pay attention. It gets pretty advanced, science wise.