Elon Musk had a good point. He said people will shift to electronic cars en masse when electric cars are the better car.

This is how I see it. Protestant Reformation didn't happen until the printing press allowed common people to have a copy of the bible. Democracy didn't happen until the Industrial Revolution (steam engine, light bulb, telegram, machines etc) created a merchant class to rival the nobility.

People won't give up meat until there is lab gown meat to buy in the supermarket for a cheaper price. En masse.