With the recent news of AI being able to detect diseases and even sexual orientation from photos alone, it got me thinking; how will society be affected when you have apps that can tell with >95% certainty if you're lying?
It doesn't sound like it would be too hard to build, one of you would probably be able to throw something like that together in a very short amount of time, but what will the fallout be?
No more white lies. No more social grace and niceties. No more saving face.
Only brute, blunt honesty...
:edit
I want to expand the range of scenarios a bit; jealous spouses whipping the app out in public the whole time("Do you think she's prettier than me? Do you like him more than me? Do you miss XYZ?").
Children asking their parents who's their favourite. OR asking them if they regret having them. Or asking if dad REALLY is their dad.
What about employers asking if you're bluffing in salary negotiations? Or asking if you worked 100% of your hours. OR if you're looking to move?
Then, there's the legal side - at what level of certainty would courts accept lie detector apps as evidence? Would they?
What if politicians can be caught lying in press conferences in real time, and be called out for it?
Heh, try then. We can't even understand complex sentences yet, much less process things like sarcasm. Even people have issues with that.
The examples you listed are also biased. Not untrue, but the sexual orientation one was based on self-published profile photos which completely changes the context.