From 600+ conversations with the world’s leading thinkers.
Although, today, the universe appears more bio-friendly than it ever was. That doesn't mean it is inhabited. We still have to prove that.
A particular individual trait that has piqued my interest through research is intellectual humility. Embracing the possibility of being wrong enhances the likelihood of being right—a somewhat magical paradox. This notion dovetails with the scientific ethos, where the quest isn't about proving oneself right.
Truth is a quality of reality. It has nothing to do with what I believe. Truth, when it comes to empirical issues, is an objective thing. Whether something is true or not is independent of whether I think it is true or not, and a lot of people confuse this.
Ageing is malleable, we can control it. 20% of our health in old-age is due to genetic factors, and the rest is due to our lifestyle. We can measure this clock. It's literally measuring chemicals in our own DNA. Here's the good news…. That number can be changed. If you smoke, if you don't exercise, if you eat lots of fatty foods, that number will accelerate and if you do the right things, perhaps even take some medicines, you can slow that number down – even reverse it.
What we perceive to be the absolute truth of the world around us is a complex reconstruction, a virtual reality created by the complex machinations of our minds. We have no idea about the world that we inhabit and what the brain is doing is really creating an entire shortcut that enables us to understand the world without being able to physically really understand the reality in which we inhabit, which is a mind-blowing concept.
Nothing prepares you to actually see the Earth from space. I spent more than 7 months in space, and even on my last day that view never got old.
The question to be asked is why doesn't everybody fly?
The story of modernity is a story of scientific advance – but in reality, with every step forward, we're taking half a step backward in terms of making ourselves more fragile.
Surgery, like many other disciplines, is primarily about facts, your relationship with the facts, how you manage, handle, interpret and use those facts. This is something we all begin to do very early in life, in our childhood.
We're outnumbered by bacteria 1.3:1, we're slightly more bacteria than we are human. We're also stardust. We are also 60% water, and that water in our bodies is billions of years old; it's been the clouds, the bottom of the sea, waves, streams and everything in the cycle. At an atomic level, 98% of the hydrogen in our bodies came from the bigbang. We're incredibly ancient beings, perhaps we should see ourselves as aliens!
We are hard wired through our biology to understand: what there is, what to do about what there is, that there is a difference between knowing what there is and knowing what to do about what there is and what the difference is.
Our brains actively construct a model of the world, which is our actual experience. Incoming sensory data serves mainly to verify and correct this internal model. A familiar example is predictive texting on smartphones. You start typing, and the phone anticipates the rest of the word. This process mirrors how our brains handle sensory input, triggering various internal models.