[ali_m]

I think one of the challenges with stellarators is that they are harder to simulate due to the twisted geometry of the chamber (with a tokamak you can often simulate a single 2D slice of the torus).

[willis936]

All optimized stellarator designs are periodic, so only one period (with correct boundary mapping) needs to be simulated. But yeah, it's a much larger search space.

[exo-cortex]

that makes a lot of sense.