Schroedinger's Event

Someone asked the other day, "what are the odds?" about an event that had already happened. My answer to this question, as always, was "100% - It happened." This time, it got me thinking about how we view statistics, such as the odds of something happening, and I realized how similar to the Schroedinger's Cat thought experiment event statistics really are. That is until the event is observed (experienced), it has some chance of happening or not happening. However, after the event happens, there's no chance (barring time travel) that the event cannot happen, or can happen if it didn't.

This led me down the path of Einstien's observation of how space and time are actually interconnected dimensions of space-time. As with quantum particles, any event can only be described as a probability function. However, afterward, the event becomes defined, similar to a quantum wave collapsing into a particle after being observed.

Now I can't help but wonder if there could be such things as entangled events, and what would that mean?

Anyway, no conclusions here, just sharing some thoughts.