The idea of God always existing

[Undeceived]

Modern science teaches us that the universe began in a “big bang.” Most theists would point to this and say, “See! Something had to be before the big bang.” They fail to understand that there wasn’t any time or space before the big bang.

If there wasn't time or space, then time and space began at the Big Bang. Do you have evidence or logic behind the concept of beginning without a cause--any scientific reason at all to believe a fortuitous origin is possible? In order not to fall into infinite regress, the cause of time and space (or some prior cause) must not have a beginning. There must be a "pure actuality," or "actus purus," in the terms of Aristotle. What would you say is the actuality that caused time and space to begin? Would you instead hypothesize an event without a cause?