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> We had propulsive rocket landings in the 80's.

Didn't the Apollo project use propulsive rocket landings to land on the moon (which was kind of necessary due to the moon's lack of a dense enough atmosphere)? IIRC, that was much earlier than the 1980s.

We have had pneumatic tubes as well since 1799 and they've been used by many companies in the past. The only thing novel about the idea was the scale and technology behind scaling it.

Please cite your source about reusable rocket boosters. And yes, my life does extend prior to 1970.

Space shuttle boosters were reusable.