Think about toilet facilities available 500 years ago . Think about trying to take a piss in the woods . Does this answer your question ? <| sep |> We all are seeing the same wavelengths , but do wepercieve the same thing ? Our brains might interpret the wavelengths differently . What I perceive as blue , you might perceive as green . There ' s no way of knowing . <| sep |> As impossible as it is , I wish Star Wars would cancel Star Wars Rebels and finish Clone Wars . It was an absolutely brilliant series that got cancelled by Disney while it was still nowhere near losing steam . What ' s worse is that it got replaced by Rebels , absolutely sad . Honestly I don ' t care who does it , I just want Clone Wars back and Rebels cancelled .