So what was the moment, the light bulb moment, if you want to call it that, that made you think, let's set up Language Angels?

It didn't really happen like that, but there was a moment where we decided to do that.

So I had a particular position in a language college.

So there was a secondary school that was language college, and I had to go into the primary schools to train their teachers.

And it was really hard.

So I was AST for the London Borough.

I thought I had all the necessary skills and it was going to be really easy and I could train teachers.

Francesca, do you want to talk us through what they meant by the critical period and why that is so important? Because that's kind of central to everything you guys do.