leadore

It was phased out over time with both types being sold as all new cars used unleaded only. Eventually the old cars that used leaded gas aged out and were replaced with new cars.

not any more

I agree, but I’m afraid these days they’d just farm it out to a private business instead of doing it themselves with the goal of doing it right like they did in the 60’s. Today they’d overpay some billionaire hugely for worse results because greed for profit = overcharging and substandard parts and oversight.

A stroke can definitely affect your speech, so some people may not pronounce their words as they did before. In some cases it might sound to others as if they have a “foreign accent”, especially if they can no longer pronounce some sounds like “th” or “r” well, which are also sounds that non-English speakers have trouble with.

As for suddenly being able to speak a language they never knew? No. I have heard of some people becoming more artistic or creative, but that could be from damage to other parts of the brain that previously inhibited that behavior.

Before that you had to work until you died or couldn’t physically do it any more and starved.