[tim_hutton]

Two orbital things we might look for:

1. Activity in geostationary orbits.

2. Orbits where the planet's year is exactly divisible by its day, eliminating leap years.

[jl6]

Are you suggesting #2 is sufficiently unlikely to occur naturally that it becomes a likely technosignature of an alien race whose programmers got so fed up with calendrical calculations that they megaengineered their planet’s rotation as a way of streamlining their datetime libraries?

[psychlops]

Programmers with that amount of political power are definitely a sign of an advanced race.

[yencabulator]

Based on our experience on Earth so far, that seems to be the easier route to correct code.