At TFL, we're making journeys safer for everyone, and that includes improving safety on London's roads.

That's why we and London boroughs are lowering more speed limits to 20 miles per hour,

because 20 miles per hour roads have already reduced collisions resulting in deaths

or serious injuries by 24 percent. That is how we're making journeys in London safer and brighter

for everyone. Search TFL Improvement Plan to the Mayor of London and TFL every journey matters.

This is CBSI in the world. I'm John Batchler, super computers, ultra computers, good

computer. I learned from Ludwig Siegel, the European Business Editor, former US Technology Editor,

that a company GraphCore is building a good computer, not for the fact that it's better than

other computers, but its name for a man Jack Good, who in 1965 speculated that we would have

ultra intelligence in our computers. Well, the good computer aims to be that vision,

going from the four-year-old model of 110 parameters to the building 500 trillion parameters.

What is a parameter? I welcome Ludwig to help me understand the world of man and machine,

because this journey is going to take us into a machine that very much appears to be creative.

Ludwig, a very good evening to you. This is wonderful. What is the parameter that we would go from

110 in a computer and bragging about it as artificial intelligence to 500 trillion,

and we're still hungry? What can it do now that it couldn't do then? Good evening to you.

Good evening, and thanks for having me. A very good question. What's the parameter?

A parameter is, I mean, to sort of, it's a number, of course, and it's a probability.

So these foundation models, these big AIs, these big computers, these good computers,

we're talking about, basically, at least the software is a bunch of numbers and millions of numbers

and now trillions of numbers. These numbers represent probabilities. So when these computers,

so these models work, they use these numbers to make a decision which word comes next for instance,

...