Pretty nearly semantically meaningless. Loll's simulations do not start from nothing. They start from a minimal set of simplices. I forget how many, a dozen maybe. This continues along for a while and then takes off. At no point in the simulation are there zero simplices.
I think when Loll says "universe from scratch" she means that she gets something like a classical spacetime to emerge from very minimal fundamental elements. This doesnt refer to emergence in time but from a minimal ground---the simplest logical components.
What is the 2007 article where she says 'emerged from nothing'?