There is a new way with very very tiny fiber optics, which give an enormous high resolution. There are many many thousand fibers, very very close together with a very small diameter.

That's the new way - with computers, computers, computers. That's the way we can have the cell survive and get some new information in high resolution. We started about five years ago and, today, I think we have reached the target.

I have many times thought I did the wrong thing, but the reason was not to be a medical doctor - it was just to have the information. But then, maybe I was wrong, I don't know.

We sometimes freeze the specimen with liquid nitrogen, which is extremely cold, you know. This is another technique we use now - but the specimens are not alive.