Those aren't placebo buttons, rather for the hard of sight. The audible "Wait" i... | Hacker News

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		laken on Jan 25, 2019 \| parent \| context \| favorite \| on: The pros and cons of placebo buttons Those aren't placebo buttons, rather for the hard of sight. The audible "Wait" is to tell to not cross yet, and it will then tick when it's safe to cross, and increasingly tick faster the time lowers.

cimmanom on Jan 25, 2019 [–]

Which doesn't explain the ones with neither haptic nor audible feedback.

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