Once a week.
Subscribe to our weekly newsletter.
How Your Brain Slows Down Time
Your assessment of how long something took has a lot to do with how much energy your brain has to burn during the event.
Why time is rubbery and can speed up or slow down? It turns out, when I looked into the literature on this, the experiment had never been done about why time seems to move in slow motion when you’re in a life-threatening situation.
But I talked to so many people and I’d experienced it myself that I wanted to study that. So I found a way to study it by dropping people from 150 foot tall tower and measuring their time perception on the way down. In addition, several other experiments we did in my lab led me to understand that people don't actually see time in slow motion during an event. Instead, it’s a completely retrospective assessment.
In other words, when you’re in a life-threatening situation, your brain writes down memory much more densely, and then retrospectively, when you look at that, you have so many details that you don't normally have that it seems as though it must have lasted a very long time.
That's the only interpretation your brain can make. So time, your assessment of how long something took, has a lot to do with how much energy your brain has to burn during the event and how much footage you have of the event.
In Their Own Words is recorded in Big Think's studio.
Image courtesy of Shutterstock
Physicist Frank Wilczek proposes new methods of searching for extraterrestrial life.
- Nobel Prize-winning physicist Frank Wilczek thinks we are not searching for aliens correctly.
- Instead of sending out and listening for signals, he proposes two new methods of looking for extraterrestrials.
- Spotting anomalies in planet temperature and atmosphere could yield clues of alien life, says the physicist.
1. Atmosphere chemistry<p>Like we found out with our own effect on the Earth's atmosphere, making a <a href="https://ozonewatch.gsfc.nasa.gov/facts/hole_SH.html" target="_blank">hole in the ozone layer</a>, the gases around a planet can be impacted by its inhabitants. "Atmospheres are especially significant in the search for alien life," <a href="https://www.wsj.com/articles/looking-for-signs-of-alien-technology-11581605907" target="_blank">writes Wilczek</a> "because they might be affected by biological processes, the way that photosynthesis on Earth produces nearly all of our planet's atmospheric oxygen."</p><p>But while astrobiology can provide invaluable clues, so can looking for the signs of alien technology, which can also be manifested in the atmosphere. An advanced alien civilization might be colonizing other planets, turning their atmospheres to resemble the home planets. This makes sense considering our own plans to terraform other planets like Mars to allow us to breathe there. Elon Musk even <a href="https://www.space.com/elon-musk-serious-nuke-mars-terraforming.html" target="_blank">wants to nuke the red planet.</a></p>
The Most Beautiful Equation: How Wilczek Got His Nobel<div class="rm-shortcode" data-media_id="ijBZzuI2" data-player_id="FvQKszTI" data-rm-shortcode-id="061a3de613c45f42b05432a2949e7caa"> <div id="botr_ijBZzuI2_FvQKszTI_div" class="jwplayer-media" data-jwplayer-video-src="https://content.jwplatform.com/players/ijBZzuI2-FvQKszTI.js"> <img src="https://cdn.jwplayer.com/thumbs/ijBZzuI2-1920.jpg" class="jwplayer-media-preview" /> </div> <script src="https://content.jwplatform.com/players/ijBZzuI2-FvQKszTI.js"></script> </div>
2. Planet temperatures<p>Wilczek also floats another idea - what if an alien civilization created a greenhouse effect to raise the temperature of a planet? For example, if extraterrestrials were currently researching Earth, they would likely notice the increased levels of carbon dioxide that are <a href="https://www.epa.gov/ghgemissions/overview-greenhouse-gases" target="_blank">heating up</a> our atmosphere. Similarly, we can looks for such signs around the exoplanets.</p><p>An advanced civilization might also be heating up planets to raise their temperatures to uncover resources and make them more habitable. Unfreezing water might be one great reason to turn up the thermostat. </p><p>Unusually high temperatures can also be caused by alien manufacturing and the use of artificial energy sources like nuclear fission or fusion, suggests the scientist. Structures like the hypothetical <a href="https://bigthink.com/paul-ratner/this-mind-bending-scale-predicts-the-power-of-advanced-civilizations" target="_self">Dyson spheres</a>, which could be used to harvest energy from stars, can be particularly noticeable. </p>
Wilczek: Why 'Change without Change' Is One of the Fundamental Principles of the ...<div class="rm-shortcode" data-media_id="KrUgLGWm" data-player_id="FvQKszTI" data-rm-shortcode-id="cc13c3c65924439c1992935c61ab8977"> <div id="botr_KrUgLGWm_FvQKszTI_div" class="jwplayer-media" data-jwplayer-video-src="https://content.jwplatform.com/players/KrUgLGWm-FvQKszTI.js"> <img src="https://cdn.jwplayer.com/thumbs/KrUgLGWm-1920.jpg" class="jwplayer-media-preview" /> </div> <script src="https://content.jwplatform.com/players/KrUgLGWm-FvQKszTI.js"></script> </div>
As patients approached death, many had dreams and visions of deceased loved ones.
One of the most devastating elements of the coronavirus pandemic has been the inability to personally care for loved ones who have fallen ill.
Research reveals a new evolutionary feature that separates humans from other primates.
- Researchers find a new feature of human evolution.
- Humans have evolved to use less water per day than other primates.
- The nose is one of the factors that allows humans to be water efficient.
A model of water turnover for humans and chimpanzees who have similar fat free mass and body water pools.
Credit: Current Biology
Being skeptical isn't just about being contrarian. It's about asking the right questions of ourselves and others to gain understanding.