Can someone ELI5 Starlink revenue sources? At the core, it's an ISP (but served from space). What does Starlink have that differentiates from any other ISP? Is it because the TAM is global? That may be true at the margin, but I am sure most eligible subscribers would prefer a land-based system (eg no one in SF is cancelling their Xfinity to use Starlink) so how much is really left for them?