Anecdote related to last paragraph...20 or so years ago I drove a then 20 year old truck some guy had cobbled together. It was a real hunk o junk, rusty, the s

Anecdote related to last paragraph...20 or so years ago I drove a then 20 year old truck some guy had cobbled together. It was a real hunk o junk, rusty, the speedometer didn't work, etc. But it did have a new engine and carb, but it had no cat. It had several exhaust leaks (judging by noise). I was lucky it even had mufflers. Went through a taco bell drive thru one night that had a weird tunnel portion. It was a slow line, and even sitting in that tunnel a couple minutes, my friend and I got lightheaded and a bit teary eyed. It's scary we didn't even realize it til we got through the tunnel. That was the moment for me of realizing how awful these things are for the environment. If we have to be enclosed with our own emissions it will literally kill us, but we just blow it away in the open air as 'not my problem anymore.' I'm glad emissions are better now, and that electric has a viable path forward. Shame we weren't at this point a few decades ago.