Plus, you can't even buy shares for Alibaba, you only get shares for a Cayman Islands shell corporation which has a contract to receive the profits from Alibaba proper. You get absolutely no decision-making power, no influence, and frankly little in the way of actual worth.
Next you'll say Haswell's just a tweaked NetBurst maybe?
When we write about the future, we don't write about a *plausible* future. We write about a future world which is like the present or some familiar historical epoch (e.g. Roman Empire), with conscious additions and deletions. I think a third reason may be our pessimism about our present and cynicism about the past. Which brings us right back to literary fashion.
I'd argue that we do try to write about the future, but the thing is: it's pretty damn hard to predict the future. What people do is take the current point in time and extrapolate it to whatever point they want, be it tens or hundreds or thousands of years into the future. If TV is big rounded cathodic tubes and is starting to get very popular now, then in the future it'll be ubiquitous, you'll have TVs in your bathroom and they'll have created some really fancy cathodic tube designs, with TVs taking up entire floors of buildings to act as animated billboards.
The problem is that if we look at history, we see it littered with disruptive technologies and events which veered us way off course from that mere extrapolation into something new. The computer was such a technology. The internet. The smartphone. There are an incredibly large amount, some which just slightly changed things, others which had a profound and lasting impact. They're also pretty much impossible to predict, since they're not only a technical event but a societal event. The technology has to catch on.
If you were to try to write sci-fi that followed this pattern, you'd run into the issue of massive divergence very quickly. Your imagined future wouldn't match with reality at all, since all those disruptions didn't actually happen, and perhaps never will, while others you hadn't envisioned did. It's therefore far more relatable to just stick to what's here now and extrapolate, because at least people will be able to make a connection and see where the evolution took place. Plus, many times sci-fi is a critique or a commentary on the time period it was written in, so it makes sense to ground it in that same time period.
Your analogy is also incorrect. A photon is an electromagnetic wave, it's not a vibration propagating through a medium. An ocean wave without the ocean is nothing, it's energy being transmitted through movement of the medium (same as sound). A photon can exist in a vacuum.