It is possible that human intelligence is not computable, but it looks veeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeery difficult to prove it. Nobody is sure. So the options are:
1) Try to prove that human intelligence is not computable.
2) Give up and go to another research field, like particle physics or artificial sweeteners or whatever.
3) Try to see how close to human intelligence can you get with the current technology. Some small areas may have a good approximation, like image classification, playing chess, …
4) Try to make a fully functional bug compatible human simulation.
For example, currently human intelligence accomplishes much more with much less resource usage (many many orders of magnitude) than any AI algorithm we've developed. Someone could look at the trend, and get an idea of the extent of improvement we'd have to reach parity with human intelligence, and see if it seems at all feasible. A simple quantitative analysis of what we know so far.
At any rate, I'm unaware of any sort of significant effort at #1.
1) Try to prove that human intelligence is not computable.
2) Give up and go to another research field, like particle physics or artificial sweeteners or whatever.
3) Try to see how close to human intelligence can you get with the current technology. Some small areas may have a good approximation, like image classification, playing chess, …
4) Try to make a fully functional bug compatible human simulation.
Most people is in 2 or 3.