A lot of the replies to this, in rough grok analysis of epistemics at play, to be fair, remind me more of those who kept insisting blue LED were impossible, and their arguments remind me more of "we cannot have spaceships because the string doors won't work in space" type arguments, more than they remind me of industry agents intentionally sowing seeds of ignorance squared. [~ Mild confidence. Generously [amidst some redherrings and moved goalposts etc.].]

... And fun to think of the contrast of those two examples. They're [/you're] almost certainly seeing this with blue LED, and blue LED was sought by industry, did not obsolete their industry, but enhanced the demand for their product, while augmenting the appeal and profit margins and all kinds of other features (~ radically different world where we did not yet get blue led... smart phones wouldn't have happened, for a start). They're [you're] almost certainly not seeing this while sat in their [/your] own spaceship, nor even a water powered car... probably not even a car fuelled with hemp oil or ethanol (~ radically different world where we did not get any of those suppressed... far fewer incentive for resource wars, far greater self empowerment and a better educated and empowered populace, resulting in better democracy from that better informed public, with a better practical grasp of energy, utility, facility, society, health and more, on the road to becoming polymaths in the making (~ rather than single-purpose slaves in training)).