Update

main.md

@@ -85,6 +85,7 @@ Are you a noob but see our ideas as appealing and would like to join us? Say no
 - Thanks to [quantum computing](quantum.md) you can use a computer to [carry out computation](counterfactual_computing.md) without actually running the computer?
 - You can mathematically [prove you don't know some information](no_knowledge_proof.md)?
 - That in [capitalism](capitalism.md) low end [CPUs](cpu.md) are made by manufacturing a high end CPU and then purposefully crippling it, just for economic reasons? See e.g. [core unlocking](core_unlocking.md). This also goes for car engines etc.
+- That back in the times of black and white TVs they sold colored transparent plastic sheets to put over the screen to add fake [color](color.md) to it? It was blue on top (for sky), green at the bottom (for grass) and orange in the middle (for people, which would nowadays be seen as "[racist](racism.md)").
 - That a complement of a [formal language](formal_language.md) can be computationally simpler than the original -- for example that a [pushdown automaton](pushdown_automaton.md) cannot tell which strings are of form a^(n)b^(n)c^(n), but it can tell exactly which ones are not?
 - That [LGBT](lgbt.md), [feminism](feminism.md) and similar movements are not truly leftist but rather [pseudoleftist](pseudoleft.md) and therefore [fascist](fascism.md)?
 - That there is no simple formula for calculating the perimeter of an [ellipse](ellipse.md)?