It's the only possible explanation of why humans, if they're very unlucky, can become grossly obese, in a way that would be totally impossible for any other primate, physically impossible.

Employment is increasingly precariousness. And where unemployment is preferred to universal job insecurity, it has become impossible to suppress.

It had become almost impossible clearly to distinguish between traditional soldiers of fortune and personnel of PMCs, owing to the new marketization of security.

And we were all very flattered to see that image become a symbol of accomplishing something that people had thought was impossible really the world over.

All I had heard about them was how poor they were, so that it had become impossible for me to see them as anything else but poor.

Physically impossible.

That's impossible.

It's impossible.

Absolutely impossible.

But these societies may find it difficult to address adequately their troubled pasts without the support of international institutions. Elsewhere, the fight for human rights might become virtually impossible.

German and European Union policymakers are calling his bluff. As a result, the two sides have become stuck in a passive aggressive standoff that has made serious negotiation impossible.

Silly. Foolish. Impossible.

It's just impossible.

Impossible, you say?

The impossible crate illusion.

It was deemed impossible.

Eighteen minutes, clearly impossible.

No, right? It's impossible.

And since what's impossible is always unknown, it allows me to believe I can cheat the impossible.

(a) Is not materially impossible

They are impossible to juggle.

She's asking for the impossible.

Impossible? I don't think so.

You may think that's impossible.

The World Economy s Impossible Demand

It is next to impossible.

I'm sorry, but it's impossible.

You should know that's impossible.

It's almost impossible to model this structure any other way, and it's almost impossible to do it on computers.

He pointed out, however, that it was impossible to include on the agenda an increased number of items without allowing less time for their consideration, as the duration of the congresses had become shorter.

And yet, the impossible is happening.

They were almost impossible to swallow.

And it's almost impossible to perform.

And everyone said it was impossible.

So the seemingly impossible is possible.

And he said that was impossible.

To live without air is impossible.

Almost many of them are impossible.

It is impossible to do it.

That aim is impossible to attain.

It's impossible to go out now.

Without the sun, life is impossible.

We know that this is impossible.

Well here's the late, great Jerry Andrus' impossible crate illusion in 3D, in which Jerry is standing inside the impossible crate.

So what is this impossible hyperbolic structure?