so those of us who think differently from you are inhuman? /jk humans from long back, could, and still very much can, easily parse / grok those exact dates an

so those of us who think differently from you are inhuman? /jk humans from long back, could, and still very much can, easily parse / grok those exact dates and do the trivial date arithmetic needed (just mentally, without even pen and paper, forget a calculator), in seconds, to figure out the deltas nearly perfectly, or at least close enough for their needs. just because you cannot do it, don't think that plenty of others cannot (analogous to what you said to me above). I have interacted with different types and categories of people, of various educational levels and socio-economic backgrounds, from so-called "low" to so-called quite "high", for many years now, and I can tell you that even uneducated farmers, fishermen, bike and car mechanics, and other kinds of manual labourers that I have met and interacted with a good amount, can easily do these kind of calculations in just a few seconds, mentally. not necessarily all, but many of them can.