Cavuto: Don't bet on 'sure bets'

It's different this time.

How many times have you heard that time-worn expression?

We won't see another 9/11 because it's different this time.

Or another meltdown in stocks because that was a unique set of events at that time.

Or another market bubble, because we learned from the last one.

Even though we didn't.

Even though history proves we tend to repeat history.

The folks who insisted 150 years ago after the assassination of Abraham Lincoln that we'd never leave a U.S. president so exposed.

Even though three more times we did.

Or those who insisted after World War I, that it wasn't the war to end all wars, after all.

Or that a stock market crash like the one in 1929 couldn't be repeated, until it was in 1987 and a couple of times since.

I guess I'm not saying anything profound here, just that we all remember we live in the moment,

And it's only a moment.

And what we learn from that moment because it only seems to last a moment.

Like after the Apollo 1 fire and three astronauts died in their capsule in 1967, we said that something like that would never happen again.

Until nearly 20 years later, something worse, did.

That's the thing about sure bets. Don't bet on 'em.

Because while new circumstances are different, the course of circumstances isn't.

We all get ahead of ourselves.

We all get cocky.

We all get over confident.

We all assume things are different this time.

That we'll never see a scourge like the Nazis, only to see another one called ISIS.

Each is different. This much is the same.

The only thing that's different this time is that it's never really that different any time.