What if that takes several decades? What if that turns out to be a lot harder than we thought. Supposedly can take a lot longer than you expect. If you had a

What if that takes several decades? What if that turns out to be a lot harder than we thought. Supposedly can take a lot longer than you expect. If you had asked scientist how long it would take to cure cancer in the early 1970's, I'm sure they'd have guess 50 years would have been more than enough time.