Monday, September 30, 2019
Friday, September 27, 2019
Thursday, September 26, 2019
Monday, September 23, 2019
Thursday, September 19, 2019
This has some interesting explanation of Relativity.
I have some problem with the concept of "Spacetime" because that leads to conclusions like time didn't exist before the Big Bang.
The Special Theory of Relativity is a great model for making predictions in the universe, but maybe, and that is a big maybe, another theory could also make accurate predictions.
Tuesday, September 17, 2019
Monday, September 16, 2019
We are fortunate to live in a geologically stable period. In 535 AD, a supervolcano blew away one island in the Philipines creating an 18-month nuclear winter world wide. However, that's small potatoes compared to what this planet has been through. We have enjoyed about 12,000 years of relative comfort after the last period of glaciation. This brief warm period is predicted to go away in another 10,000 years. The further you go back in time, the more extreme some of the events have been, including at least five mass extinctions. One of these was caused by an asteroid strike and another may have been caused by a deadly gamma-ray burst from space. Twice, the planet has frozen solid, covered in a mile or more of ice worldwide. In the very early days of planet Earth, a Mars-sized object hit the Earth scooping out enough material to create the moon.
Monday, September 9, 2019
Saturday, September 7, 2019
This is a very interesting video.
It would seem impossible for humans to survive billions of year. If we have any descendants billions of years from now, then they would be dramatically different in form and function. They would also have to survive many worldwide extinction events.
Due to plate tectonics coming to an end, the Earth is predicted to be cold, dry and dead in 500 million years. Maybe our more advanced descendants, if they are still around, will find a way to terraform the planet
I think that machine intelligence will eventually replace biological intelligence. I see this happening through our own actions as we slowly modify ourselves. I think that the beginnings of this will start in our lifetimes.
Here is another very interesting video from the same source, called "Last Words." https://www.youtube.com/watch?v=Qig68IuPrbk