I thought Jim Holts explanation was far too complex for anyone in the audience to understand. Honestly just like a lot of people I was raised in a christian household and to worship god. Therefore I am lead to believe that the universe exists because god put us here. He has left no clear answer to why he put us here but he did give us brains that are more complex and developed then anything on this planet.  Therefore someday like Jim Holt said one day we’ll find out are selves.