A convergent sequence is bounded.

You take a nozzle and you create 10 random variations on the nozzle.

Then we would be demonstrating convergent validity.

That way we've shown some, convergent validity.

How do you design that nozzle?

Dispenser 172 chicken soup nozzle clogged.

It's not enough though to just show convergent validity.

Hey, baby... you're sucking on the wrong nozzle.

Copy. Nozzle coming in at 73 per cent.

So, content validity, convergent validity, divergent validity and nomological validity.

And after 45 generations, you have this incredible nozzle.

You pump it at a high pressure through a nozzle.

No, it belongs to my boss. ( nozzle clatters ) His goat?

As you see, the nozzle is secreting pretty dense concrete.

The shower nozzle is equipped with a self cleaning system, too.

The second form of validity, convergent validity, is where statistics and correlations come in.

And he will, or she will, calculate the optimal design of the nozzle.

And my last change, I wanted to alter a P Cool nozzle position

P Cool nozzle positions, so on and so forth, those changes are all captured

You can have a multi nozzle machine, that will be good for large buildings.

As well as, divergent validity. If we only show, convergent validity then we can't be really sure.

The material, which is cementitious, initially concrete, is deposited through a nozzle, and the building is built layer by layer.

But, no, I'm on the engine. I'm a pipe man. I actually hold the nozzle and put the fire out.

Instead of defaulting to our normal convergent approach where we make the best choice out of available alternatives, it encourages us to take a divergent approach, to explore new alternatives, new solutions, new ideas that have not existed before.