The Quickest Way to make humans a multi-planet species

But it has a catch. Any method will have a catch, as well. So why not?

Here's the catch. You'd have to perfect and develop aneutronic fusion energy. Aneutronic fusion energy will dramatically increase the odds of success. One of Musk's big problems that has to be solved is energy. With aneutronic fusion, there will be little need for vast quantities of fuel.

Not to mention the fact that aneutronic fusion can lead to more advanced rocket engines that can do far more heavy lifting needed to make this dream a reality.

The catch may prove to be too hard, but there's a lot of people working on it already.

One of those people is Erick Lerner, and his Focus Fusion device. He is getting close to the make or break part of his experiments. If these experiments succeed, this catch will have been largely caught. The only fuel needed would be water and boron. Since these are readily available, and there's little to no radiation waste, there is little problem here if you can just get to net energy.

It may help Lerner if he had more funding. Perhaps Elon Musk could consider funding his research? Update: I guess I should disclose that I own one share on Focus Fusion's Gofundme page thing.