It's perfectly doable, we just can't mass produce anything strong and light enough for it. It's also much easier to make it in orbit/on the moon and lower it to Earth iirc, so it's another chicken and egg thing of it making establishing space industry easier, but it's easier to do when you already have space industry.
Uxiro t1_j1zhtyn wrote
Reply to comment by spiderborland in Why don't we plan for more "staging" at orbital platforms? by gbbloom
It's perfectly doable, we just can't mass produce anything strong and light enough for it. It's also much easier to make it in orbit/on the moon and lower it to Earth iirc, so it's another chicken and egg thing of it making establishing space industry easier, but it's easier to do when you already have space industry.