A Batman Will Rise Every 25 Million Years

Ryan North’s T-Rex does the impossible: Using sophisticated mathematics, T-Rex calculates the “EXPECTED REAL-LIFE BATMAN GENERATION RATE.

We all know Batman is a superhero unlike any others and is in fact a cultural icon in his own right. But now we know that there can only be one Dark Knight every 25 million years.

T-Rex IS rounding up to 25 million, but yeah: we've got a long time to wait. And that's with me not working in that BOTH parents have to be murdered - AT THE SAME TIME - in order to keep the odds more likely.
However if you somehow manage to survive 25 million years, having Batman around is definitely something to look forward to!

Source: Qwantz