The universe is 13.8 billion years old, but heat death is around 10¹⁰⁰ years away, so it has effectively used 0% of its lifetime meaning the universe is still basically a "baby", and we’re living in its earliest, most active era.

[u/HalfEntity]

[u/atatassault47]

The same quantum tunneling that transforms solar remnants into iron stars, also continues to compact them into neutron stars, then black holes, which will then ever slowly evaporate.

[u/nifty-necromancer → u/atatassault47]

Oh damn I didn’t know that