[magicalhippo]

Everyday Astronaut had a couple of (IMHO) great videos which goes into why rocket engines are hard[1] and the Starship many-engine approach[2] specifically.

[1]: https://www.youtube.com/watch?v=bAUVCn_jw5I

[2]: https://www.youtube.com/watch?v=AgqZMK22LEk