The speaker says people continue going to the gym despite machines replacing the need for human strength to move heavy objects, because exercise is fun and healthy and a six-pack is attractive.

“for example, people go to gym today,”

“but we don't need their physical strength to manipulate heavy objects because we have machines that do that.”

“They still go to gym. Why do they go to gym?”

“because it's fun, it's healthy,”

“and you look hot when you have a six pack.”