Hypothesis: All swans are white.

Eventually: Discover that black swans can exist.

Scientists: Our hypothesis must have been incorrect, let's continue studying and ammend our model of how the world works.

Democrats: Change definition of swan to exclude black swans so their hypothesis is correct

The black swan thing comes from this video: https://www.youtube.com/watch?v=vKA4w2O61Xo (trust me it's relevant)

Hypothesis: All swans are white.

Eventually: Discover that black swans can exists

Scientists: Our hypothesis must have been incorrect, let's continue studying and ammend our model of how the world works.

Democrats: Change definition of swan to exclude black swans so their hypothesis is correct

The black swan thing comes from this video: https://www.youtube.com/watch?v=vKA4w2O61Xo