Science
Each country or social layer of people has a counterpart at which they laugh. It helps them to feel better, you see. So, there was a joke circulating a long time ago about a man, supposedly from such a group. That man was sitting on the bridge and throwing bricks down into the river. When people asked him what he's doing, he answered: "I always wanted to understand why square bricks produce round waves". Viktor can relate to that man. His urge to question the processes in nature, irrespective of how obvious the answer is (or rather what contemporary prejudice is), as well as his fascination with the cosmos as a whole and its complex mechanism, led him to pursue a career in science. He could spend hours in a café, dragging a plastic cup of coffee along the table and watching the patterns of standing waves, or looking through a polarized film from the bus window, not caring what people might think. Infants do exactly the same in their discovering of the world that surrounds them. And look how much they achieve in such a short time! When people become older and lazier, they substitute for the first innocent curiosity a convenient prejudice about the world they live in. Viktor is proud to pronounce that he is one of those lucky people who have not completely lost this.

Computers
A long time ago someone very smart created intelligent machines and called them humans. One of the features they borrowed was the urge and ability to create. So, one day they decided to create an intelligent machine and called it a computer, because this is what this machine could do - compute. Ever since, humans have tried to improve the intelligence of their creation, so it could do what humans do... This Sci-Fi intro describes well the human obsession with computers, AI, and any kind of cybernetic mechanism that makes their life easier. As a member of Homo Sapiens Viktor also longs to give his intelligence and passion to this task.

Hobbies
See above.