I don't know how it's going to happen (if I did, I'd be a billionaire) but I am pretty confident for the same reasons that I don't build my own mobile phones or

I don't know how it's going to happen (if I did, I'd be a billionaire) but I am pretty confident for the same reasons that I don't build my own mobile phones or furniture or sew my own clothes, I eventually won't cook my own food, except as a hobby the same way people make their own furniture and clothes today. I can't make a McChicken sandwich for $1.39 so in some ways we're already there.