Lithium graphene is truely superconductive

[PB666]

What exactly are the problems we currently face in making a fusion reactor anyway?

Not an expert but i think it takes amount of power to laser the isotpes to temperatur and pressure to fuse, and Y amount of power returned and the difference is only a few percent.

[SargeRho]

What exactly are the problems we currently face in making a fusion reactor anyway?

Materials, and Plasma Containment. Mangetic Confinement is like trying to contain Jello with rubber bands.

[Mazon Del]

What PB666 refers to is not the standard fusion reactor style. That is something the US National Ignition Facility (NIF) is working on. Normal fusion projects, like ITER, use Tokamak style reactor which has a torus (think a donut) with contained plasma. Generally speaking so far the issue is that in order to increase the reaction rate (and thus energy output) you have to do things that push the magnetic containment systems closer to their failure points. What ITER is hoping to do is to be so big of a reactor that it uses efficiency of scale in order to overcome this limit. Basically to use efficiency of size to overcome the inefficiency of method.