I also don't think that we are far apart. Nor do I think I was dismissive.

I wouldn't say I'm pessimistic either, just (again) realistic. I've been reading about how fusion power is just around the corner for decades. That same type of promise for autonomous driving is already 10 years old. Affordable EVs for the masses have been promised for going on 10 years. Musk promised and never delivered (his specialty) a $30k model 3. The hurdles are higher than expected for all 3.