[Laremere]

I agree, though I think the real winner here is the customers. The New Glenn 9x4 has a higher targeted payload capacity that an expended Falcon Heavy. Mission design takes years, and payload mass is the most important constraining factor. So it'd now be fairly reasonable approach to start building now for 9x4's constraints, and then fly on it or Starship depending on readiness and price. If customers start doing this now, that also means a quicker pickup on using the increased launch capability.

On a funnier note, the 9 in Falcon 9 is the number of engines. So blue origin is somewhat picking up on their naming scheme. Or, by BO's scheme, it'd be the Falcon 9x1, or the Starship 33x6.

[nine_k]

> Falcon 9x1, or the Starship 33x6.

...and we'd be back to steam engine wheel formulas: https://en.wikipedia.org/wiki/Whyte_notation

[dotancohen]

Though not identical, more commonly well known are the 4x2 and 4x4 designations for vehicle drive wheel specification.