See 'A Universe From Nothing' by Lawrence Krauss.
read the book more than twice, it is getting long in the tooth by now. and there is no such thing as nothing.
The zero energy slogan is a croc too. just because energies balance out, like in our 4 billion year old orbit, gravity pulling in, orbital velocity pulling out, does not mean there is 0 energy: contrary, there are 2 "energy forces" pulling against each other.
same goes for the eternal energy potential. there are (2) equal parts, 1 on on each side of the balance,
even LK's "nothing" needs time to exist in, energies to balance, and
that ultimate question, never mind the answer, is beyond our comprehension, mine anyway.