Sometimes I have random thoughts. Okay, often I have random thoughts. They're often a little odd, but regularly keep me entertained while commuting, at the gym or doing other things which don't fully engage my brain. This string of thoughts is probably a little more towards the "I have no idea how you thought of that" than others. You have been warned.
What if Scotty, the engineer from the Star Trek Enterprise ("No bloody A, B, C or D") was wrong? What if you really could change the laws of physics?
What if, all of a sudden, spring constants changed. What if springs, all of a sudden, got drastically stiffer or more squishy (What? Squishy is a technical term...and even if it's not you understood what I meant.)? Think of the havoc that would ensue. Old guys' wrist would be broken as their watches exploded. Water fountains, soap dispensers, many things with buttons would explode as the springs that kept their switches and handles in place suddenly caused those buttons and switches to rocket out of their housings. And, what if it was just a quick thing. Like after five minutes the spring constants reverted to normal? How long would it take for someone to figure out what had happened? Would the world believe it?
Or, what if air suddenly became drastically more or less compressible. Or friction just disappeared...or increased by a factor of 10? It would be like ice skating...or walking with velcro on the bottom of our shoes.