In view of the possible difficulties for the tokamak fusion reactor concept by reason of too high costs according to the Pfirsch-Schmitter result, the basically simpler and spatially highly concentrated pellet fusion reactor of the CASCADE type might be of interest. The only question is how pellet fusion will be realized, though the present day fusion gains by laser fusion are at least as good as that of tokamaks despite ten times less funding for laser fusion. The turning point for laser fusion is the fact achieved by Yamanaka and Nakai that a volume compression with the highest gains can be verified experimentally, for which case it has been shown already that volume ignition does lead to reactor appropriate moderate compression to only 50 times the solid state density for laser pulses in the MJ range.