Some brief thoughts on this subject:
I noticed that speculators often do a lot of speculating. With that said, is it possible to focus on speculating only, reading nothing else but all the speculating topics and then somehow becoming better at speculating than others?
All those speculations compelelty depends on peoples instinct/intuition. Remember, the price depends highly on the current events. Most people makes those speculation based on just the events that is currently taking place or about to hold. Like, for the next halving, people are speculating that the price is going to increase. This is based on demand and supply fact. The fact that people believes this is going to happen, they will start investing on bitcoin, which in turns will cause further rising of the price.
You can become an expert on speculating if you keep yourself always updated with the current event, but remember, never blindly just invest based on these speculations.