[TheOtherHobbes]

No it doesn't. If you throw some fuel in their general direction, oxygen fires are self-sustaining with relatively little effort. It takes more effort to stop a large oxygen fire than to make one.

Fusion is the opposite. Fusion's natural state is Not Fusing, so in ICF you have to keep compressing and heating the fuel. Using equipment with optically tight tolerances and epic pulsed energy densities. Which are somehow maintained reliably for long periods. In spite of significant debris and huge temperature swings.

[kortex]

Fire's natural state is burning only at standard temperature and pressure (or greater). If you look at the "average" state of all space in the universe, fire is not stable.