Yes, a lot of experts works as a speculator, reading and analyzing the movement of various Crypto currency available in the market. There are experts who have been trusted in this field that are paid for their speculations. But, speculating is hard because, we could not truly know what will really happen in the future just by analyzing the given sets of data available in the present trends.
Yes, but that doesn't make them experts in speculation. It's about guessing and speculating so with time that gives you certain experience and feeling for the markets but not also the expertise. I don't think that speculation could be defined as a discipline or science like economy, it's more the question of the talent and some personal features.