What do you mean the world might be infinite? The Earth isn't. Do you mean the sun, asteroids and other planets in the solar system will provide all the resourc

What do you mean the world might be infinite? The Earth isn't. Do you mean the sun, asteroids and other planets in the solar system will provide all the resources and energy we could ever need? Because even that's not infinite on a Kardashev increasing energy scale. But the real concern is the biosphere, which most certainly is finite and the 7.4 billion humans are very much dependant on it. Maybe we terraform Mars someday, but I doubt that will do much for life on Earth.