Weird Bike

When I was driving to Västerås to the singing group yesterday I suddenly see this man on a bike. But he was lying down, reading a book!?

I saw him from a distance, and kept looking as I drove past as I though surely I was imagining it. But no, he was going quite fast, lying down and reading a book.

I had to google it and apparently there are there new bikes now, where you lie down and cycle. But why he was reading a book at the same time I don't know.