In other words, you can't cheat gravity or the laws of thermodynamics. No one seems to listen, but my initial assessment is that the shear amount of energy required to launch a viable space colony is going to be prohibitive. I have never seen a detailed mass and energy budget for a colony. When exploring the New World you know how far to go, how many supplies to take with you, you had tools you could use to extract resources to support a colony etc. And even then colonies failed.
What is required to set up a viable colony? How many tons of food? How much equipment is required to build shelters? How much equipment must be sent up to extract needed resources? How many people must be sent up to have a viable gene pool? How much throw weight is required? How much energy? What is the overall costs in terms of global GDP?
We have a lot of people here, let's sketch some of this out. Simplifying assumption, that booster efficiency will increase by 25%.
Go ahead, give it a shot.. But in my case my gut tells me it will be huge.