The odds are astronomically small. ESA has at least 5 other missions aimed at L2. [1]

[1]: https://www.esa.int/Science_Exploration/Space_Science/Hersch...

> astronomically small

That's what I supposed.

"Space," [the Hitchhiker's Guide] says, "is big. Really big. You just won't believe how vastly hugely mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space."

Even L2 is big. I'm sure you could 10s or 100s of kilometres either side of "L2" and still have the same benefits as Webb has. In fact it you have enough objects there, and cooperate, they could effectively orbit each other.

They aren't exactly at L2 as they are orbiting a point that is L2. So just put each one in their own orbit. Hopefully it doesn't get congested that we have to fear a Kessler Syndrome incident at L2

> Hopefully it doesn't get congested that we have to fear a Kessler Syndrome incident at L2

Not a concern.

First: The Sun/Earth L2 is a big place. JWST's orbit around L2 is substantially larger than the Moon's orbit around Earth, and its orbit moves around in multiple dimensions -- it isn't constrained to a single dimension, like a geosynchronous orbit around Earth is. Even if there were debris in the vicinity, the odds of hitting it would be negligible.

Second: Orbits around L2 are inherently unstable -- it's a "saddle point", not an attractor. JWST has to maneuver a bit to keep itself in orbit, so any debris that ended up around L2 would naturally drift away.

yeah, um, i didn't really mean that with any seriousness, like, at all