Loss aversion, status quo bias, and reactance all work against redesigns. Users do not judge the new version on its own. They judge it against what they feel you took away.

pretty much

your brain hates blank space, so it fills it with the nearest sample: you

In 1979, Daniel Kahneman and Amos Tversky put the core line on the page: “Losses loom larger than gains.” That is the center of this chapter.

think of it like designing a hotel room while standing in your own bedroom. everything feels obvious because you know where your socks are

annoyingly, no

asking helps, but the chapter is warning you about the gap between what feels true and what survives contact

William Samuelson and Richard Zeckhauser showed how sticky the current state becomes once it is already there. Jack Brehm adds the pushback people feel when…

yep. the loss lands before the gain is the trap door

then it shows up as snapchat took the old product away

In February 2018, Snapchat rolled out its biggest redesign in years.

make the hidden assumption visible before the review starts

then test the behavior, not just whether the room nods

and if a choice only works for informed, patient, caffeinated people, treat that as a bug

that’s the series tbh

design psychology is mostly noticing the human nonsense before it ships

deal. hydrate first