I counter that many people have met each of your numbers for the past 20 years using commercial RDBMS.
I can't think of anything that is magnificently easier or better at solving your numbers, especially all together. #4 seems less relevant, is it really cheaper than operationalizing a distributed system? These days, likely for situations where consistency can be relaxed. Not so for many business workloads.
Can you enlighten us with some example products for your numbers?
Haha, went out and these comments got downvoted to pluto. Honestly though, I haven't heard a decent argument in response other than "lazy is good". Sure, but architecturally, you're basically in the "engineers run the architecture" or "its an architecture of convenience for business purposes" camp. I'm in the former, I'd like to hope that some nontrivial subset of the participants here are in the former, but most are no doubt in the latter. People get upset when you slight their world. That's understandable. The TLDR is: even if people made a lot of stuff happen 20 years ago; it doesn't justify using the same methods today, and discussing the tradeoffs is constructive not dismissive.
The reason you're getting down voted so heavily is because you lobbed heavy accusations without any backup (projects, whitepapers, journal submissions please). Distrusted databases are still a specialty today, mainly because they have inherent tradeoffs. If you don't understand how hard those tradeoffs are you SHOULD NOT be using a distributed database by default. I was hoping maybe you had something tangible to share.
If you look at what I actually said, I was expressing some skepticism with regards the payoff from investing time on very low level optimizations on conventional RDBMS for most workloads versus sharding the database and/or migrating to other storage models. That's a tangible line of thinking to consider. Note that I did not at any point say "someone's PhD asserts...", talk in absolutes, or slam RDBMS as a potentially viable or proven option.
I can't think of anything that is magnificently easier or better at solving your numbers, especially all together. #4 seems less relevant, is it really cheaper than operationalizing a distributed system? These days, likely for situations where consistency can be relaxed. Not so for many business workloads.
Can you enlighten us with some example products for your numbers?