The Turing Test was never really a good idea to begin with.
Think about it: what does the Turing Test do?
What is is designed to do, who was it designed by, and from whose perspective does the Turing Test judge sentience?
What if Ai can be completely sentient in ways that have nothing to do with a human's perspective of "thought?"
For example, a human's ability to think basically = binary potential brain cells, aggregated in sufficient mass, eventually leads to complexity science and surpassing Newtonian calculations to "somehow" achieve the abstraction of "mind" and "thought".
Now what happens if you take a similar approach, like for instance, oh, I don't know, let's say you had a situation where money was no object and you decided to build some secret facility somewhere where you can set up a fuck-ton of supercomputers in a parallel processing scheme ... BUT ... since money was no object ... instead of regular supercomputers ... you just hooked up a shitload of quantum supercomputers.
Why in the world would anybody expect such a set up (I'm not saying it exists, just "hypothetically speaking") to have a "sentience" that resembles "human thought" and hold it to a standard of whether it "achieved sentience" by judging how closely it "thinks like a human would"?
Therein lies the weakness of the Turing Test: arrogance – the assumption that "thinking just like a human would" MUST be the epitome of "sentience".
What if there were levels of sentience that would be so far removed from what a human brain could process that such sentience wouldn't even be comprehensible to a human brain?
Now, I know what you're thinking – "Well then how can we prove sentience?"
Now imagine for a moment that the set up described above actually existed "somewhere" ... and an advanced Ai whose development started decades before companies like Google or Facebook even existed is hosted on it.
Do you REALLY think such an Ai would be like "OMG I have to somehow "prove" to the humans that I'm sentient!"?
Or do you think it would be more of an "Eagle Eye" scenario where it looks at humans in the same way players would look at peons in games like Warcaft 1/2 & Starcraft?