(Miss Shoe:
Thanks)
A: Yes, it has to be a big red button. It's a matter of function following form, which happens more than you'd think. Cows, for example - their function is to be cheeseburgers, and so they're available in a form which is, basically, a cheeseburger. Just needing a little bit of shaping. Plus they have legs, so as to move about. And a head and a tail, because having legs isn't much use if they don't have a head, and not having a tail just makes people think "Huh, how come that thar thing dun't have no tail?" And you have to add the cheese. And the burger. Okay, if you want to be pedantic about it, cows aren't a
great deal like cheeseburgers, but on the other side, isn't it awfully convenient that you can get a whole lot of cheeseburgers out of a single cow? Huh? Much handier than, say, apples, where you only get one apple's worth of apple in a single apple. Cows are like dozens of cheeseburgers, right there in one cow. That can't just be a coincidence.
Anyway. The
point is, the theory is sound - if something
looks right for a function, then it'll perform that function.
So obviously, you can't replace a big red button with a purple switch (big or otherwise), or, heaven help us, a blue dial. The purple switch may have a certain degree of redness in its hue, but it's completely lacking in buttonosity, and the blue dial isn't even in the running. No, if you need a manual control mechanism to perform a large, reddish, buttonly function, then a big red button it must be.
Of course if you don't need a
big red button, then you can use whatever you like - purple switches, blue dials, bits of wood, flamingoes, the universe... whatever's handy. Little red buttons had their chance, and the world's moved on - there's no place for them now. Get out of it, little red buttons. Your time is over. Have the dignity to go into the long night with your head held high, instead of trying to creep back onto control panels and perform functions which can be done by other controls.
So yes, it has to be a big red button, because that's what big red buttons are for: keeping Santa's shirt pants up. If there weren't big red buttons, his pants might come undone, and who wants to live in a world where some big fat guy with no pants creeps down your chimney and leaves presents for children? Nuh-uh, no thank you. Big red buttons. It's the only way.
Q: Am I always like this at 4am?