The technology that underlies solar cells is quite remarkable. High quality polycrystalline silicon is literally grown from a vat then sliced into incredibly thin wafers using diamond-tipped cutting tools before being carefully coated with exotic non-reflective substances and connected up with printed electrodes. They are genuinely a product of the space race and their operation is only explainable with quantum physics.
White LEDs are also a miracle of technologies combined with complex rare-earth chemistry and even more arcane quantum physics. Each white LED starts off as a blue LED - in itself something that took decades of dogged research to develop into something viable - combined with a carefully crafted mix of phosphorescent materials to absorb the blue light and re-emit it with a wider spectrum. They are robust and highly efficient producers of a pleasing blue-white light that is both without glare and (largely) without heat.
And what have we, as a society, done with these technological marvels, these products of incredible scientific progress and production engineering?
Made light-up fucking gnomes.
We might as well just wipe out the entire human race and let the cockroaches have a go.