https://www.amazon.com/Fifth-Generation-Artificial-Intellige...
As for "The important thing is that they tried" : would you give them credit for "trying" to invent real-time, neuron-by-neuron brain imaging, in 1982? And giving billions of taxpayer Yen to the effort? How about quantum computers?
Or would you have been justified in saying that there are projects with a better prospect of success right now, and we shouldn't waste the taxpayers' money on things guaranteed to fail?
So what ARE your limits? Or are there any?
[1]: https://en.wikipedia.org/wiki/Fifth_Generation_Computer_Syst...
[2]: https://www.amazon.com/Fifth-Generation-Artificial-Intellige...