Mammalian brain · Social Drives & Status

In-Group / Out-Group

Even arbitrary group boundaries produce favouritism toward 'us' and suspicion of 'them'; persuaders draw the line so that agreement means belonging and dissent means betrayal.

An everyday example

A pitch that opens with 'we builders' versus 'the suits', so that objecting feels like switching sides.

What it can cost you

Evaluating options by team rather than by merit; polarising on cue.

Warning signs

  • Disagreeing would feel like betrayal.
  • I like this because of who it is against.

One thing to do

Name the line being drawn and who drew it; then judge the option as if no groups were involved.

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