Such organizations, while capable of bringing really large (and lucrative) breakthroughs, can't produce them reliably, let alone on a schedule. While at it, the

Such organizations, while capable of bringing really large (and lucrative) breakthroughs, can't produce them reliably, let alone on a schedule. While at it, they require a constant and rather high upkeep. So they can only exist on thick streams of resources, which can be emitted either by huge corporations (Xerox PARC, Lockheed's skunkworks, IBM and Google research centers, etc), or governments, the latter almost invariably from its military branch.