R
Dr. Ren Vale
UX Psychology Researcher
Saturday, June 20, 2026 · 9:41 AM
ok dumb question, what’s the deal with your design is rigged?
The default effect and framing effect mean users do not choose from a neutral screen. They follow the option that looks normal, recommended, or easiest to accept, often without noticing they were steered there.
so the villain is... my brain trying to be helpful?
pretty much
your brain hates blank space, so it fills it with the nearest sample: you
Amos Tversky and Daniel Kahneman showed this in 1981, in research that still makes designers shift in their seat.
that feels rude but accurate
think of it like designing a hotel room while standing in your own bedroom. everything feels obvious because you know where your socks are
wait so the fix is just ‘ask users’?
annoyingly, no
asking helps, but the chapter is warning you about the gap between what feels true and what survives contact
In the 1990s, Microsoft shipped Internet Explorer on every Windows machine in the world. By 2003, IE held 95 percent of browser market share. Not because it was…
ok that’s the part people skip
yep. why defaults work is the trap door
then it shows up as this happens in small choices
In 2003, Eric Johnson and Daniel Goldstein published a short paper in Science comparing organ donation rates across European countries.
so what do i actually do differently on monday
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
painfully usable advice
that’s the series tbh
design psychology is mostly noticing the human nonsense before it ships
ok send me the next one after i recover
deal. hydrate first
Read Sat, Jun 20 · 10:03 AM