Know how many propositions I've had to crack the wall?

When I was 11, it was difficult to convince my family that I needed to spend my money to buy an iPod Touch when for them I already had an excellent iPod Nano.

And we have a lot of skill and experience, but it's a trick, so how are you supposed to prepare to get through that glass ceiling?

And so, in fact, we need a big breakthrough here, something that's going to be a factor of 100 better than the approaches we have now.