Facts decay over time. And the time it takes to disprove or replace half of it can be predicted.
Data in medicine become half as relevant in 2-3 years. For exact sciences, 2-4 years.
MORE IDEAS FROM Half Life: The Decay of Knowledge and What to Do About It
If we want our knowledge to compound, we’ll need to focus on the invariant general principles.
Half-lives show us that if we spend time learning something that changes quickly, we might be wasting our time.
The most successful, busy people in the world dedicate at least 5 hours a week to deliberate learning.
The 5-Hour Rule is the most critical practice we can all adopt for long-term career success. However, almost no-one takes it as seriously as they should.
Erwin Schrödinger was a Nobel prize-winning physicist. Schrödinger proposed a paradox in 1935 to illustrate a point in quantum mechanics about the nature of wave particles.
At the center of quantum theory is the idea of a wave function. A wave-function describes all the possible states subatomic particles can have, including energy, momentum, and position. A wave-function for a particle reveals there is some probability that it can be in any allowed position. However, you can only know the position by observing it. Without observation, you have to say that it can be doing any of the things, even if the probability is small.
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