Don't be condescending when you don't even understand the difference between a hypothesis based on a translation of an observation in one field into another, and a firm conclusion based on the same.
Absent all the other evidence we have, hypothesising that the world is flat because everywhere is locally flat would be entirely reasonable.
Is the planet even round? It don't seem to be round everywhere I look so I doubt it is round anywhere else. :)
Please ask an LLM to explain the basics of epistemology to you.