What if I changed the mass of a proton

[MeltedLemonade]

Would something happen

[Catastrophe]

It'll be upset and slap you for changing its mass. So don't

[MeowDread]

bad things would happen

[Pixie]

Can't change the mass of it, but if you were a star you could add more using fusion reaction

[Riruru]

The universe would fundamentally change, we'd probably stop existing or worse, we'd most probably have to rediscover physics. All because of you.

[Rumpelcrutchskin]

Considering that Universe exists only because of very specific set of values it would probably be bad.

[N3tRunn3r]

Either "Big Crunch" or "Big Rip"

[Hammer Of Evil]

Originally posted by MeltedLemonade:

Would something happen

it would probably unrecognizably warp any matter that had protons in it.

our bodies as well.

[Birds]

matter would get more dense, either from a reduction in surface area or a decrease in gravity affecting the balance of strong and weak nuclear forces and causing the more-diffuse matter to bunch up into large ionized formations of higher mass-energy, despite their diffuse nature. ie more protons/sq inch, either because of more gravity or less gravity.

like a nebula

[⍚MagusFromHeaven⍚]

You'd be God himself

[livinggg]

It would take longer to download and take up more space on your hdd.