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main.md

@@ -67,6 +67,7 @@ Are you a noob but see our ideas as appealing and would like to join us? Say no
 - 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 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)?
 
 ## Topics