Just an interesting hypothetical situation I came up with, if technology to read minds or actually detect lies was ever developed, would our species as a whole benefit from it? In this hypothetical situation, you'd have to be hooked up to a machine, so you'd know it was happening, and you'd have to "consent" to it. You can't "trick" into it, either you let the machine access your thoughts or you don't. Because of this, you could be tortured or "compelled" to go into the machine by law enforcement or a spouse or whoever. Some advantages: Criminals could no longer lie in court to escape their actions. Leaders/politicians could be held more accountable, or at least they would look bad for refusing to use the test. No more innocent people in prison. People could take this test to clear their name. Big scams/cover ups could be easily unraveled, or again, at least the people would look suspicious for refusing to use the tech. Disadvantages: Totalitarian governments would have much more power. The ability to overthrow them or work against them in secret (which is probably the only way to do it if they're strong enough) would be gone. Could be seen as invasion of privacy. It might get to the point where every parent demands their kids take this test, or every girl/boyfriend gets their significant other to take it everytime they have doubts, Every employer might want their employee to take it often. Which I don't know whether or not this is really a bad or a good thing. On one hand you could say that it helps filter out deceptive people from jobs they shouldn't have but on the other you could say that it lets the employers pry into your life too much, and that it lets them base hiring decisions on factors that shouldn't be relevant. Refusal to get involved with it might imply guilt. People who didn't like it might be assumed guilty or look bad. Is deception a necessary practice to get our species to function? Does the good outweigh the bad here? Just wanted to get everyone's thoughts.