The speaker says simulations and experiments complement one another and that progress should use an iterative loop of simulations, AI, and experiments, because simulations alone will never suffice.

“predict the stability of a new material it's definitely not perfect but it's definitely better than other methods i can think of and yeah so going back to your question the reason we use them is for certain things it's easier to simulate than experiment and they kind of complement each other well and then we can like do these in a loop like we feel like simulations will never be enough by themselves but in the loop of simulations ai and experiments you”