Yeah, he got a chip so he could feel emotions, and amusingly the "whizbang" number they quoted for him at one point was apparently 60 Teraflops, 20 less than Watson's peak, though we're still a ways off from hauling around 800 Petabyte drives.
He was based on Soong physically and personality-wise, and it seems probable that the same mind which could make something like Data could figure out how to upload into one, he's just another of many possible extensions of transhuman potential left fallow by the Federation.
Then you get Lore, what happens when you take helpful and polite and capable Data and let him feel the richness of human emotions? He writes poetry so beautiful it makes you weep? He becomes a religious icon who travels the stars helping those in need and spreading the wisdom of some amazingly rich yet logical belief system he founded? Maybe he'd just be Data but better, funnier, more exciting and passionate, but still in control?
Hah, nope, he's a psychopath, good luck everyone who doesn't have a supercomputer for a brain!
The big issue with transhumanism is that it does force a societal divide between those that are augmented and those that aren't
You have a massive external memory and recall faculty available at all times if you want it, you have the ability to record and replay video of absurdly high resolution at will, you can access the minds of a vast segment of all humans alive, see them if you want, talk to them, you can determine your location at any point without the slightest bit of effort, perform all sorts of calculations ridiculously quickly, obtain definitions and spelling and pronunciations as needed, and even speak to someone in a language you don't actually understand, plus many more things, just by pulling the fondleslab out of your pocket.
That thing went from being a unique gadget made by a mad scientist, to a complex gadget which took at least a feat and some wealth, to a high end but still common piece of equipment, to a standard issue sort of thing (rope, two torches, three sacks, two weeks rations, smartphone, waterskin, flint, etc), and now it's over in "assume everyone has this equipment because I don't feel like having to specify that all of you aren't naked" territory.
You may have glasses, filled teeth, repaired bones or joints, corrected lenses so you don't need glasses, artificial limbs of ever increasing capability, and so forth.
Arguably transhumans are here, who said it has to be "full conversion cyborgs" or "genetically engineered superbeings" when "surpassing the limitations of unaugmented humanity" suffices perfectly well?