Well, China hasn't reverse-engineered the latest Intel chips, but researchers have (for example) simulated the activity of a rat neocortical column.
Well now, that's something I have crunched the numbers on personally.
I assume you're talking about Markram's Blue Brain project, which is more accurately an emulation - not that we need to get into those semantics again. Numbers wise, they're doing 10k cells at 1/100x speed, on a 500 Teraflop supercomputer.
This works out to 5 Teraflops (5E12 flops) per real-time neuron. There's enough arguments for and against their choice of simulation fidelity for me to call the whole thing a wash and run with these numbers until we have more data.
The human brain has about 100 billion neurons - 1E11. Assuming embarassing parallelizability, a whole-brain human emulation running in real time would need 5E23 flops, which wikipedia tells me is 500 zettaflops.
A mouse cortex, interestingly enough, has only 4 million neurons and would need only 2E19 flops, or 20 exaflops. This will be used in a bit.
My interest has historically focused on when individual computing clusters will scale up to these capabilities. Distributed systems can leverage lots of power, but latency issues are always going to be a bitch. So, taking computer #500 from Top500, and assuming Moore's Law continues at its present trajectory (it's holding very steady, fyi), we're looking at 2040 before a computer can emulate a human, more likely 2050 or so to give us a bit of leeway with all the assumptions made above.
But if you want to compare it to worldwide computing power, as if we could take every computer on earth and grind them into a thick computronium paste to harness arbitrarily,
these guys say that in 2007, the world's general-purpose computing capacity was 6.4E18 ips, call it 6 exaflops, with a growth rate of 58% per year. If that held since, then we passed the global computing power needed to emulate a mouse cortex sometime in 2010.
Well, sure. This particular example doesn't matter. But the broader point about arguments from authority does matter.
You say that like you expect them to listen. We're on page 105. People stopped bothering to read each others' posts, much less take anything said in them to heart, over fifty pages ago. We're now two choirs preaching to ourselves in front of the other. Either satisfied or disappointed, everyone else has left.