Does everyone else picture a watch or clock hand ticking in their head, counting 1 by 1? I got 5.45ish pretty consistently. Reading other scores here, it's pretty amazing we're as good at this as humans.
I use a vocal click like a metronome, three clicks to a second. Can do it with my mouth closed, of course. Got 5.3 seconds.
The bulb flickers at about 1/3 of a second in my browser.
That’s clever, never thought to use anything faster than a second for mental counting.
I pulled up a metronome web app in another tab and set it around 23 bpm. And it still took me about an hour to hit 5.5.
As a child I was taught to count out 1 one thousand, 2 one thousand, 3 one thousand... I used a clock to set my cadence the same day that I received this instruction, and I've recalibrated a couple of times since. 5.25 first try. 5.44 second try.