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This is 99% invisible I'm Roman Mars. If I ask you to close your eyes and mimic the action of

using one of the simple human interfaces in everyday life, you could probably do it, no

problem. Without having a button to

push, you could close your eyes and pretend to push a button and that action

would accurately reflect the action of pushing a real button.

Same with flipping a switch or turning a door knob.

If you close your eyes and fake the movement,

it would sink up with its real world use.

Now if I asked you to do the same thing with the real world use.

Now if I asked you to do the same thing with a car's steering wheel,

you'd think you'd be able to describe steering accurately and mime the correct movements with your hands in the air.

But you'd be wrong, so wrong.

You'd probably kill a bunch of imaginary people.

But don't just take my word for it.

Yeah, my name is Steve, I'm a human factors engineer.

His full name is Dr. Steve Clote. He just introduced himself as Steve.

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