If each new satellite can put down more spot beams, you can cover more cells for longer. With the spectrum they have, they could put 8 beams on a cell with 100% duty cycle, which is probably around 3.2-4Gbps.

They’ve already applied to the FCC for the 2Ghz spectrum. They’re already launching the larger 1.5 satellites that include lasers to limit ground stations. They just had a successful test fire of a starship with the engines mounted this week.

What makes you doubt the company that made reusable rockets that land on boats and reflux 13+ times won’t do this? The ENTIRE industry said it was impossible but it was fully within the realm of physics. They pulled it off because it was possible.

Use narrower beams and you increase the availble bandwidth. Same as using more wireless access points using lower transmission power each.