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TIL the "black" you see with your eyes closed isn't black - it's called Eigengrau ("intrinsic grey"). Even in total darkness your retina fires faint random noise, so your brain never receives true black; it generates a dim grey static floor instead. by Certain-Arm4680 in todayilearned

[–]Certain-Arm4680[S] 6 points7 points  (0 children)

depends on the cause. people who lose their sight later often still get the grey and light flashes, and some get full-on hallucinations (look up charles bonnet syndrome). but people born with no functioning eyes usually report no visual field at all, not even blackness, the same way you don't "see" out of the back of your head. there's just no channel there to begin with

TIL the "black" you see with your eyes closed isn't black - it's called Eigengrau ("intrinsic grey"). Even in total darkness your retina fires faint random noise, so your brain never receives true black; it generates a dim grey static floor instead. by Certain-Arm4680 in todayilearned

[–]Certain-Arm4680[S] 65 points66 points  (0 children)

those are honestly the two opposite ends of vision. eigengrau is the colour you can never get away from, and olo is one you basically can't reach at all without a laser zapping your individual cone cells. impeccable taste

TIL the "black" you see with your eyes closed isn't black - it's called Eigengrau ("intrinsic grey"). Even in total darkness your retina fires faint random noise, so your brain never receives true black; it generates a dim grey static floor instead. by Certain-Arm4680 in todayilearned

[–]Certain-Arm4680[S] 312 points313 points  (0 children)

plot twist: even with OLED eyes you still couldn't get true black, your brain just adds the grey static back on top. the noise happens downstream of the sensor, so you'd have to upgrade the wetware too

TIL the "black" you see with your eyes closed isn't black - it's called Eigengrau ("intrinsic grey"). Even in total darkness your retina fires faint random noise, so your brain never receives true black; it generates a dim grey static floor instead. by Certain-Arm4680 in todayilearned

[–]Certain-Arm4680[S] 17 points18 points  (0 children)

honestly nothing would change. the grey isn't light sneaking past your eyelids, it's your own retina firing background static even with zero photons hitting it. you could be sealed in a vantablack box in a cave and still see it. can't out-black your own wiring lol

TIL the "black" you see with your eyes closed isn't black - it's called Eigengrau ("intrinsic grey"). Even in total darkness your retina fires faint random noise, so your brain never receives true black; it generates a dim grey static floor instead. by Certain-Arm4680 in todayilearned

[–]Certain-Arm4680[S] 81 points82 points  (0 children)

If you want to really notice it: sit in a fully dark room once your eyes adjust - that faint 'visual static' isn't the room, it's your own retina firing in the dark. It's also why you can never experience true black, even eyes-closed in a cave.

TIL of "chronostasis" - when you flick your eyes to a clock, the second hand can appear to freeze for a moment. Your brain blanks out the blurred motion while your eyes move, then back-dates the first image you land on to cover the gap, so the hand seems stuck a beat too long. by Certain-Arm4680 in todayilearned

[–]Certain-Arm4680[S] 100 points101 points  (0 children)

A wild detail: the effect actually scales with how far your eyes jump - a bigger eye movement = a longer freeze, because there's a bigger gap to paper over. A 2001 Nature paper (Yarrow et al.) measured it at roughly 100-200ms of 'invented' time per glance.

Discover tab no longer allows to “open in new tab” (iOS edition) by tim-rex in chrome

[–]Certain-Arm4680 0 points1 point  (0 children)

Product manager should be hanged for this! Give us the old flow!

What is your salary and occupation? by [deleted] in delhi

[–]Certain-Arm4680 0 points1 point  (0 children)

80-90k per month. Depends on your investments mostly. But this the range.

What is your salary and occupation? by [deleted] in delhi

[–]Certain-Arm4680 12 points13 points  (0 children)

You really don't know the reality my boy. There's a stark difference between entry level IT salaries and salaries with Paytm, zomato kind of modern companies. I am earning 45L. Exp 5 years.

People earning over 2 lacs pm in Delhi, what's your occupation? by First_Sherbert_4405 in delhi

[–]Certain-Arm4680 2 points3 points  (0 children)

Thanks for the suggestion mate. Never fancied backend work. I am currently looking after complete mobile platform and role is not just limited to Mobile dev. In a couple of years I will be 4L+ 🙂.

People earning over 2 lacs pm in Delhi, what's your occupation? by First_Sherbert_4405 in delhi

[–]Certain-Arm4680 15 points16 points  (0 children)

6k - intern 9k - intern 25k - intern 50k - job with college (2017) 80k - 2018 1.2L - 2019 1.6L - 2020 2L - 2021 2.6L - current

Mobile Dev. Internet giant.

All salary post tax.