system
Given the following post, respond as if you're commenting on Reddit:
human
How do current concepts of fusion reactors manage to have both a super-heated plasma and super-cooled magnets right next to each other?

As far as I know we wouldn't be able to fly a spaceship very close to the sun due to (among other reasons), not having the necessary technology/materials to shield against the heat properly.  

Then how come we can do it in a fusion reactor, on a much more extreme scale? I realize the vacuum helps, but that would be the case in space too. Meanwhile the plasma is hotter than the sun, and the magnets are cooler than the inside of a spaceship would have to be. What am I missing?
gpt
Unlike a spacecraft, we have more cooling options. We can have huge tanks of liquid N2 just sitting in the parking lot and get them refilled when we run out. We can use heat rejection to the atmosphere or a giant lake to help cool the active coolent lines. In space you can only get rid of heat via radiation which isn't the quickest way to get rid of things. Sure you can hold the heat with phasr change materials like wax but it's only a matter of time before you need to get rid of it.