From 600+ conversations with the world’s leading thinkers.
There will be no cure for cancer until real doctors with real patients in real hospitals can attempt an innovation.
Loneliness is thought to be as bad for our health as smoking 15 cigarettes per day. If you're lonely, you have a 32% higher chance of getting a stroke, a 29% higher chance of having heart disease and 30% higher chance of dying prematurely.
MIT was one of the places where molecular biology was born, and I could participate in this enterprise with my own hands.
We are part of the continuum of evolution, and [we] are not the only beings on the Earth with personalities, minds, thoughts and feelings.
The surprising consequence is that amplitudes can interfere with each other. If an event can happen in two different ways, one with a positive amplitude and one with a negative amplitude, the contributions can cancel out, leading to zero probability of the event occurring. Decreasing the number of paths can paradoxically increase the likelihood of an outcome.
The people of the world are gambling for colossal stakes. Two centuries of scientific enquiry, founded in basic physics and powerful evidence, indicate that the risks from a changing climate over the next hundred years and beyond are immense.
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.
Asserting that one is healthy without being fit is a tough proposition. The hard truth is that a lack of fitness tends to correlate with subpar health, and this isn't a bold claim on my part – it's a conclusion that is well-supported by objective research.
We now have all the tools to do it. Computers are a billion times more powerful, the data is vastly better, our understanding of psychology is vastly better – we have all the elements we need now to do these things and to do them well.
I think intelligence is best understood as an entity that has the ability to improve a metric through repeated exposure over time. By that definition, machine learning algorithms are learning systems — they get better with more data and more exposures.
Smell is an outlier. The brain essentially sent out a little tentacle into the world, those nerve fibres are the only contact between the central nervous system and the external world. This is the point at which there is no barrier between the brain and the outside world.
Each time we learn something new or encounter a fresh experience, we trigger a reconfiguration of our brains. Neuroplasticity is highest during youth, explaining why children and young adults up to the age of 25 absorb knowledge so rapidly. Their learning capacity is immense, akin to sponges soaking up water.