Side note of interest, from Wikipedia: "Flying Machines Which Do Not Fly" is an editorial published in the New York Times on October 9, 1903. The article incorrectly predicted it would take one to ten million years for humanity to develop an operating flying machine.
In your reply it's equivalent of someone expecting AGI in next decade. The same is when people talk about if AI will take software dev jobs. Some just see all the flows in AI and they know they job is secure. Some other see that they are 2x productive and potentially your team mate not needed anymore. If AI can eliminate 50% of IT jobs in ~10-20 years then thats still job replacement. When we replaced horses with cars that doesn't mean we have no horses today or that nobody ride horses.
It was only six years to go from the first multi-person spacecraft and first spacewalk to the first space station.
This seems an extremely widespread belief among AI boosters.
Yeah that's my entire point, technological process doesn't have a constant rate of acceleration. Some advances are quickly made one after another and others lag and take a very long time.
Even if technological progress stopped we could have launched enough parts to assemble a colony structure.
What technologies existing today might be used for this purpose, assuming no financial or political limitations?