This is the best summary I could come up with:

Earlier this week, SpaceX launched for the 75th time this year, continuing a flight cadence that should see the company come close to 100 missions by the end of December.

"With our 2 million users, (we) need that constellation refreshed," the SpaceX official told Ars on background.

SpaceX's success in recovering and reusing Falcon 9 boosters and payload fairings has been vital to making this possible.

Technicians can swap out parts like engines, fins, landing legs, and valves that malfunction in flight or show signs of wear.

Engineers have shortened the time needed to reconfigure SpaceX's busiest launch pad in Florida to less than four days.

Supply chain management isn't as eye-popping as landing rockets on a floating platform in the middle of the Atlantic Ocean, but it's still important.

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