[dan1123]

Hawking has given a cogent mathematical description of a universe without a beginning in time.

And he fully admitted that his imaginary time scenario was untestable and therefore unscientific. Having a mathematical description does not mean it is an accurate mathematical description. That's one reason you probably read it out of a popular book rather than a scientific journal. Einstein was also wedded to a universe without beginning and added a cosmological constant to his general relativistic field equations to support a steady state universe. He called this "the biggest blunder in my career".

[js1138]

And he fully admitted that his imaginary time scenario was untestable and therefore unscientific. Having a mathematical description does not mean it is an accurate mathematical description. That's one reason you probably read it out of a popular book rather than a scientific journal. Einstein was also wedded to a universe without beginning and added a cosmological constant to his general relativistic field equations to support a steady state universe. He called this "the biggest blunder in my career".

Both Einstein and Hawking on their dumbest day are more rational than someone who asserts they can solve the problem of first cause simply by asserting that everything was created by an invisible pink unicorn, or some equivalent invisible entity.

That is not an argument. It's an intellectual tantrum.