Korean reactor reached 7 times hotter than sun, when I was reading it made me laugh that humans said fuck the dyson sphere and skipped a step on Kardashev scale yet still I find it ironic that this one built with military support.
Gravity confinement fusion with optical coupling. Really much, much more practical than the fanciful notion that NIF will miraculously lead to a commercial energy source that ingests diamond-coated nanopellets and has a duty cycle of 1:1e15.
NIF is probably a dead end for fusion power, but this is still an important milestone.