I feel "Let's just" is doing much of the work here. You can add the phrase in front of any idea and make it sound awful: "Let's just make planes fly themselves

I feel "Let's just" is doing much of the work here. You can add the phrase in front of any idea and make it sound awful: "Let's just make planes fly themselves" "Let's just put a giant battery in a car instead of an engine" "Let's just make electricity from wind" "Let's just be friends" I would love to see a list like this without such a big asterisk.