from the world's big
Re: ¿Do you think the border wall between Mexico and USA is a solution?
Depends on the problem you want to solve. If you're only interested in stopping entrants, a massive wall works pretty well. I've visited, and it's formidably tall and quite solid.
If the problem is inequality between Mexican and US citizens, and the fact that jobs and workers flow to where they are valued most, open immigration is a far more effective and humane policy.
Today, we have neither. Patchwork walls and uneven enforcement here in Arizona merely force migrants to travel across dangerous terrain, like the Sonoran desert or the Mule mountains. Poor policy takes a terrible human toll - at least 230 migrants this year. It creates an informal market for professional smugglers, often associated with organized crime. Worst, it hasn't kept economic principles from working. With huge demand for cheap labor, and scores of workers seeking to improve their lives, immigration is going strong.
Open borders are reasonable and humane. The poor deserve a chance to improve their lot.
Join multiple Tony and Emmy Award-winning actress Judith Light live on Big Think at 2 pm ET on Monday.
The team caught a glimpse of a process that takes 18,000,000,000,000,000,000,000 years.
- In Italy, a team of scientists is using a highly sophisticated detector to hunt for dark matter.
- The team observed an ultra-rare particle interaction that reveals the half-life of a xenon-124 atom to be 18 sextillion years.
- The half-life of a process is how long it takes for half of the radioactive nuclei present in a sample to decay.
What we know about black holes is both fascinating and scary.
- When it comes to black holes, science simultaneously knows so much and so little, which is why they are so fascinating. Focusing on what we do know, this group of astronomers, educators, and physicists share some of the most incredible facts about the powerful and mysterious objects.
- A black hole is so massive that light (and anything else it swallows) can't escape, says Bill Nye. You can't see a black hole, theoretical physicists Michio Kaku and Christophe Galfard explain, because it is too dark. What you can see, however, is the distortion of light around it caused by its extreme gravity.
- Explaining one unsettling concept from astrophysics called spaghettification, astronomer Michelle Thaller says that "If you got close to a black hole there would be tides over your body that small that would rip you apart into basically a strand of spaghetti that would fall down the black hole."
A new study looks at what would happen to human language on a long journey to other star systems.
- A new study proposes that language could change dramatically on long space voyages.
- Spacefaring people might lose the ability to understand the people of Earth.
- This scenario is of particular concern for potential "generation ships".