@BonesOfTheMoon@lemmy.world @lemmyshitpost@lemmy.world

I'm 30 (Zennial microgeneration) and the only item from the list I could directly relate to is the perceptible audible difference between baudrates, not just because I did experience dial-up Internet, but also because I tinkered with radio modulation (hands-on experience with ham radio).

As for numeric identifiers, I can recall of a few ones, but I didn't use ICQ: things such as (if I recall correctly) ECE9D8 hex color being the specific shade of gray for window background in Windows XP, the ID of a specific Orkut community I used to participate at the time, among other numeric memories I have (many of which are buried in some kind of "locked state", i.e. I'd need specific triggers in order to recall them, just like I'm occasionally reminded of cartoons I watched during my childhood).

In fact, my numeric and symbolic memory is particularly good. I can still clearly remember a few mnemonics from school, such as Portuguese "reficofage" (kingdom, phylum, class, order, family, genus, species) from biology classes, "sohcahtoa" (sine = opposite / hypotenuse, cosine = adjacent / hypotenuse, tangent = opposite/ adjacent) and "seno sem sono / cosseno com sono" (sine awake/vertical, cosine sleeping/horizontal) from math, AT and GC pairs also from biology, among a vast repertoire of mnemonics... without mnemonics, I remember x = (-b ± √(b² - 4ac)/2a for second degree polynomials, I remember pi = 3.1415926, I remember phi = 1.618033, I remember mol = 6.02 * 10^33, among many other constants and things... I developed my own mnemonics as well, I remember the whole Morse code and ASCII codepoints for letters and numbers, I remember some commands from Visual Basic 6, I remember some windows libraries such as user32.dll and kernel32.dll... FileSystemObject ActiveX... wow, I mean, I remember a lot of very old things... And it's been a bit more than a decade since the school times and my Windows XP childhood.

In the eyes of the society, however, it may be quite a pointless ability in times where one can just "Google it". Well, guess I'm still going to remember things despite Google's existence.