What? You didn't notice the word "but" in my reply? I wrote as simply as I could for you tards.<quoted text>
Even the flat model will eventually run down and die.
In cosmological terms, we are already nearing the end of new star formation.
The last remaining things will be black holes and if they do indeed evaporate, which would take trillions of years, that would be the end of any usable energy.
That's heat death.
There may not BE an absolute beginning OR end to the universe, ergo, no heat death.