Academic_Party_4725
Academic_Party_4725 t1_j21syrs wrote
Reply to comment by Pjotr_plz in Since matter can't be created nor destroyed, it is theoretically possible to run out of it. by Agent_Harvey
All matter is always in use. Just not by you,me,or other things on earth.
But maybe more precise would be to say that in THEORY. Nearly all matter can be used by current "living" entities. And that creating a new entity would require an amount of energy that is not freely available without first destroying another living entity.
Idk. Seems pretty silly and arbitrary to define all matter in the universe this way.
Academic_Party_4725 t1_j5gwgcl wrote
Reply to comment by IAmXlxx in ELI5 Are facial expressions and reactions like laughing learned, or do all humans do it? by David1192
Facts.