People usually tend to remember their past choices as better ones than these choices actually were. These past choices can also have influence on current decisions.
aj: maud would you like to taste my new beet pie?
maud: you took the apple pie recipe you made before, but used beets instead of apples
aj: well, beets are sweet too, so the same recipe should work just fine
maud: it’s not a good recipe for beets
aj: nonsense, this recipe’s been in the family for generations!
maud: dispersion would explain it better.
sudden dispersion: it’s a choice-supportive bias
aj: (et tu maud…)
dispersion: ponies tend to exaggerate positive aspects of familiar options, and negative aspects of options they haven’t tried before
aj: yeah so stop criticizin mah family apple pie recipe. it works fine for beets.
maud: what?
aj: you’re just exaggeratin’ the negative aspects, cause you hadn’t tried it before
redweasel: WHAT THE HECK ARE THE CMC DOING WITH THAT GIANT SYRINGE
maud: you took the apple pie recipe you made before, but used beets instead of apples
aj: well, beets are sweet too, so the same recipe should work just fine
maud: it’s not a good recipe for beets
aj: nonsense, this recipe’s been in the family for generations!
maud: dispersion would explain it better.
sudden dispersion: it’s a choice-supportive bias
aj: (et tu maud…)
dispersion: ponies tend to exaggerate positive aspects of familiar options, and negative aspects of options they haven’t tried before
aj: yeah so stop criticizin mah family apple pie recipe. it works fine for beets.
maud: what?
aj: you’re just exaggeratin’ the negative aspects, cause you hadn’t tried it before
redweasel: WHAT THE HECK ARE THE CMC DOING WITH THAT GIANT SYRINGE