We actually had some pretty long and heated discussions about how close to existing or projected technology we wanted to stay. We have more than a few people working as freelancers that are well versed in computer science and we knew that sitting down and hammering out the exact technical details(i'm talking EVERYTHING, what languages of codes would it accept, how exactly do you "boost" the performance of something by connecting it to the Matrix, what type of CPU architecture do they use, what's the power requirement to generate or transmit megapulses of data, and so on and so on) would not only take FOREVER, but it wouldn't really offer GMs or players any tangible gameplay benefit either.
We thought it better to take a few liberties with what tech could do in the 2070s to better fit narrative concepts than straight tech. Especially since tech in the 2070s has advanced so far beyond our own that we can't accurately predict what would spring up outside of the things that modern science thinks is possible. It's like how a few Sci-fi series from the 50s and 60s imagined long-range radio communicators or cellphone type objects, but never predicted something as advanced as a smartphone(i.e. a powerful hand-held computer). In their concept of the future, technology was BIGGER not smaller. Back then, bigger was better. Even Star Trek is terrible about this, they have tiny communicators on their chests, warp drives and teleporter technology yet their computer consoles tend to blow up after their starships take a hit. We got rid of that risk IRL years ago (can you imagine if your computer just exploded any time there was a powersurge?). How clumsy and fragile, yet they are supposed to be superior to us in tech.
One of the things that was funny about SR 3E was that we had a, supposedly, technologically advanced world that didn't have a WI-FI equivalent even though that technology was becoming a HUGE at that time IRL. We could very easily find SR going through that again if we don't stay outside of the box.
The other thing is, everyone likes to think that corporations and governments only do the things that are guaranteed to work, as if every Government agency or Megacorp thought/planned like NASA. If something is even a little bit risk you just throw it out and keep what has been proven to work 99% of the time.
The truth is that success in business is always a gamble and there are no sure things. No matter how much you plan and test and revise, something will always go wrong. Let's not forget that Renraku took EVERY precaution when developing Deus and look at how that turned out.
Companies like Microsoft put out their Flagship products knowing full well that they could be improved (or are completely broken and in need of a recall) which is why software updates are such a common thing now. The same goes for AAA video games (where Day 1 patches are the norm now) or even the consoles themselves (how many Xbox360s did Microsoft end up replacing?). Hell the Healthcare.gov site was a NIGHTMARE to try to work that they had to retool for months afterwords and that had an entire government's worth of resources and personnel to develop and test.
So the idea here isn't, "they have no idea how the new Matrix works because it's so darn mystical, yet they get it to do stuff....somehow."
Instead its more like, "We built this new thing and rushed it to the public because we wanted to regain control of the Matrix. Don't worry, we tested it! It's totally safe.....though there might be a few bugs we haven't found or worked out yet. They're incredibly rare and...mostly harmless....:cough:.... just call us if anything goes wrong. Dont. Touch. Anything." Which is pretty standard for most high tier services.
If a megacorp says they've made a completely safe and fool proof product, you might want to take that claim with a grain of salt. If all of the megacorps tell you they've made a completely safe and fool proof product, you know something is up.
Oh, and foundations definitely aren't resonance realms. The Matrix is the Matrix and the Resonance is the Resonance. They interact with each other, but they are definitely separate things. Resonance Realms are far too wily to be tamed and they shift constantly; you wouldn't be able to set up the control systems that exist within a foundation.