Webster defines it as "to take to be true on the basis of insufficient evidence". It's not based on fact. If there was facts you could just state those without speculating. In this particular case he's talking about Apple's motives or reasons behind what they did... Unless Tim Cook came out and said "Yes we were just doing this for this reason" or this guy is some inside person at Apple it's completely speculative.
I can speculate that Apple is planning to buy out Facebook based on my theory that they're championing privacy issues and this would be a great thing for that cause. Is that going to happen? Only the people at Apple would know.
Yeah which is fine. That is similar to inferences. Arguably you don’t have as much data to play with when speculating. You’re speculating over their speculation. What if they are right?
In other words, what is the point of calling out people’s speculation when you don’t even know? Some of these stock traders here were so confident that the impact of China on Apple’s stock prices would be nil, that they were proven wrong despite claiming they knew the “facts”
You should probably remind yourself that you are on a rumors site. The people that claim they use facts are people selectively choosing their data set to support their rhetoric