Because of science, evolution theory mainly, there are presently lots and lots of people about who deny free will is real.
Basically these people are like a stereotype of Mr Spock, coldhearted and calculating. They ignore my emotions, they ignore their own emotions, and the focus is on some practical matter at hand. They have this calculating, measuring, attitude about them, and they are extremely perfectionistic.
How should we practically deal with these people in a social setting in daily life?
1. Avoid like the plague
2. Make it clear that you don't like them, cause a scene
3. Go along with it, and curse them in thought only
4. Try to sabotage the conversation, causing it to fail as if it was an accident
5. Pay mind to what they are calculating, and calculate with them. Act as them.
6. other
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Here added a list of current influential intellectuals promoting denial of the common concept of free wil of people (the common concept in the sense of having alternative futures available one of which can be made the present)
Susan Blackmore
Daniel Denett
Richard Dawkins
Sam Harris
Joshua Greene
Jonathan Cohen
Derk Pereboom
Will Provine
William S. Robinson
Some of these intellectuals will still use the words free will, by which they mean that the result was forced by a preceding cause. They use a logic of sorting to mean choosing. So for example if the brain sorts out what is the cheapest cola per liter, and then you act upon this sorting process by buying the cheapest cola, then this is what these intellectuals would call choosing. The result is simply forced by the initial conditions, the prices of the different cola's and the rules by which they are sorted, and it couldn't have turned out in any different way.