Recent comments in /f/Showerthoughts

dclxvi616 t1_je0wrx7 wrote

Reply to comment by Coloss260 in We, as Humans, are coming closer to evolve into a new race of Humans. by Coloss260

Okay, you’re correct I was confused about the timeframe. But I don’t think the fact that we merely use our fingers more is expressed through natural selection unless people who are better at using their fingers are more effective at reproducing offspring. And they very well may be, it just takes a stretch of the imagination, imho.

Basically the selective pressure is always about if it makes you more or less likely to successfully produce offspring, who then in turn produce offspring of their own. Characteristics that make it less likely to do this die off, or are at risk of doing so. Characteristics that don’t effect your ability to reproduce don’t really effect the selective pressure.

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AxialGem t1_je0wkfo wrote

Reply to We, as Humans, are coming closer to evolve into a new race of Humans. by Coloss260

Tbh, if it is true at all that people are more precise with their fingers, it sounds like just learning and adapting on a physiological level, not a genetic one. If you lift a lot of weights, you will we more muscular, but that's not genetics necessarily. If you had an identical twin who didn't do that, they wouldn't be as muscular.

Also, that story of evolution sounds kinda...larmarckian? Of course us using our finger more during our lifetime doesn't necessarily make future generations automatically better with their fingers, right? But maybe I read your description wrong

Also the obvious thing...is it true that humans now are more dextrous with their fingers than at most points during history? I can think of a lot of things before smartphones that also require a lot of dexterity

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MPMorePower t1_je0tpcu wrote

Reply to comment by wubbbalubbadubdub in Spring and summer have almost the exact same amount of daylight hours because the longest day falls on the first day of summer by youpviver

My calendar app shows June 21 as the first day of summer, and so do my paper calendars. If you Google “first day of summer, 2023” it shows you “June 21st, 2023” before you are even done typing. We just had the first day of Spring last Monday (on the equinox) which was a semi-big deal because of how rough this Winter was.

I have no idea where you are getting June 1st from, I’ve never heard of seasons starting on anything except the equinox/solstice. It lines up reasonably well with the noticeable warmer/cooler weather due to the lagginess of the average temperature.

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Coloss260 OP t1_je0qu5z wrote

Reply to comment by dclxvi616 in We, as Humans, are coming closer to evolve into a new race of Humans. by Coloss260

I think you got confused here, I was thinking about a "not so far" future, this could be a lot of generations, but even one hundred years compared to history is not so far away.

Living beings adapt genetically to their environment, in order for future generations to survive better than they did, and in human history, our bodies slowly reduced the need of strength, to give us more brain capacity (I might need to have a look on that to be honest). This works the same for any of our physical features, and in our today's way of living, we use more our fingers that we use our strength, so what could happen then?

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