I didn't pick up on that as much. I just always thought he was this way. I think of "Datalore" for instance where one of the big differences was between Data and Lore was Data's lack of emotion. Lore even told him Dr Soong created Data that way on purpose.
No, that was in season 4's "Brothers" where Lore said that. I just checked the transcript for "Datalore," and the word "emotion" doesn't even appear in the episode. Although Picard did say to Data "You feel uncomfortable about aspects of your duplicate."
This is what I've been saying about memory and continuity. Over time, we blur our memories of earlier Trek together, which blurs our perception of the differences between series and eras and the way things changed from one to the other. And that creates the illusion that it was more continuous and unified than it really was.
But I never actually felt Data was truly emotionless throughout the show.
Yes, which is exactly why it was such a bad idea to claim he was. Even if he didn't display humanlike affect like laughter or tears, that didn't mean he didn't have his own kind of emotional response. He had preferences, hopes, concerns, aversions, affinities, etc. that motivated his choices. That's what the word "emotion" means -- a feeling that motivates an entity to act or choose. Brain activity studies have shown that all decisions are emotional decisions, even on the most coldly intellectual of things like math problems. Without emotion, there is no incentive for any action or choice.
That there was some quality there that went beyond simple machine programming.
See, that's the myth I'm complaining about -- that assumption that emotion is more complex than programming. Emotion is programming. We don't learn how to feel; we don't choose whether to feel. Those reactions are automatic and hardwired. What makes our emotions seem complicated is how they interact with our intellect and abstract thought. Animals' reactions to their emotions are simple and straightforward. If they're angry, they fight. If they're afraid, they run. Stimulus and response, plain and simple. But human emotions are interlaced with our ideas and goals and values and that makes them complex and challenging -- you might resist your urge to run from danger if your principles compel you to face your fear, say, or you might resist your sexual desire for someone because of your moral beliefs. Emotion is simple; conscious thought is far more intricate and multilayered. So the idea that it's possible to make a machine that's conscious and thinking but too hard to make one that feels stuff is getting it backward. That's like saying you can build a car so advanced that it can drive itself, but haven't figured out how to make the windows roll down automatically.
Maybe part of it was how Spiner played him, but he wasn't played like a Vulcan.
That's an ironic choice of words, since most actors who play Vulcans convey a lot of emotion.