Time. If nothing changed at all, nothing moved, nothing grew or decayed, apparently Time would still exist as a thing. How can it be other than related to change?
How the hell do so many Mattress Firm stores stay in business when they’re all so close to one another
Substitution in integration. If you have to guess or intuit the substitution, I don’t think you should be tested on it.
Cameras.
You point a lens at something, push a button and it produces an exact duplicate of a real life scene down to the tiniest detail.
I mean, I get the concept of light and all that. I just cannot wrap my head around it being possible.
How some people can make such bad financial decisions