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Three Tidbit Stories

History.

3 random tidbit stories in about 3 minutes.

1.

History Story.

70,000 BCE
2,800 Generations Ago
2,400 Generations Ago

The modern human DNA evolved sometime between 71,000 and 51,000 BCE. Imagine that. A human baby born today, and a human baby born in 60,000 BCE have nearly indistinguishable DNA. There are differences but essentially humans are the same now as they were then. The popular website 23andme.com focuses on 23 changes in DNA that signify your ancestors recent migration. 23andMe.com, ancestry.com, and many others identify differences for their customers. Finally, the medical community is currently in an intense wave of identifying genetic differences that lead to medical problems with the idea of early diagnosis, prevention, and through the use of mRNA correction.

Through mtDNA sequencing, we currently believe the most recent common ancestor of all the Eurasian, American, Australian, Papua New Guinean, and African lineages dates to between 73,000 and 57,000 years ago.

 


I wrote that History Story, 

and posted it to TST 5 years ago.

2.

History FAQ.

The question of a creator is deeply personal, but it also touches philosophy, science, and human curiosity. Whether it feels essential or irrelevant depends on the person. Some seek meaning through it. Others focus on understanding the natural world through empirical inquiry.

Context: This question came from a Facebook comment:

“I’m looking for simple answers, like why design experiments if there isn’t a creator? And, the absence of proof suggests that there is more to know and understand. Or that current scientific theory is wrong. I’m exploring the nature of a creator.”

Answer: In my work, I categorize ideas as empirical, rational, or irrational. Irrational is not an insult here. It is simply the category for fiction, speculation, the currently unknown, and the unknowable. In my epistemology, my feelings, desires, and beliefs do not determine what is true.

Good luck on your quest to frame the question of a creator in your own life. I ended up regarding it as unknown, and perhaps unknowable. I would call myself an explorative agnostic. I have spent a great deal of time considering the major viewpoints on that subject, and eventually I moved on with my life. I concluded with: enjoy the journey.

My input for your quest is this: ideas that explore the unknown should still remain grounded in reality and should not conflict with our empirical observations without good reason. Scientific inquiry and the design of experiments are driven by our desire to better understand the natural world, whether a creator exists or not. They help us uncover the mechanisms behind what we observe and build a more coherent, testable body of knowledge.

 


I wrote that History FAQ, 

and posted it to TST 2 years ago.

3.

History FAQ.

The solar system has 8 planets, not 9, because Pluto is classified as a dwarf planet, and we currently have 5 named dwarf planets for a total of 13. Let me explain.

Before Neil deGrasse Tyson, our personal astrophysicist, decided to “hate on” Pluto, we had 9 planets. That’s how many we had my whole life, and we were just waiting to see if the tenth, Planet X, would ever be spotted. Well, in 2006, in a fit of power, Neil independently decided Pluto was no longer a planet! Well, not really, but his fame as a great communicator did play a role, and he does get too much of the blame. What actually happened was that the International Astronomical Union (IAU), responsible for classifying celestial bodies, decided in 2006 to redefine the criteria for what constitutes a planet.

To be considered a planet, a celestial body must meet three criteria: it must orbit the Sun, be spherical due to its own gravity, and have cleared its orbit of other debris. Pluto meets the first two criteria but fails the third because it shares its orbit with other objects in the Kuiper Belt. Interestingly, Pluto actually has 5 moons! 

If the IAU didn’t reclassify Pluto, we’d likely be talking about 12 planets right now. In the years leading up to 2006, no less than three more planets were discovered: Haumea, Eris, and Makemake. Haumea even has two moons, and Eris and Makemake have one moon each. So, for the sake of a future trivia game, remember that we “currently” have 8 planets, and 4 dwarf planets in our solar system.

 


I wrote that History FAQ, 

and posted it to TST 2 years ago.

The end. Refresh for another set.

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