How do atoms and its components become the tangible things we feel at the human scale if they’re not tangible at the atomic level (and have weird properties like the particle wave duality)?

Question

Is there any explanation as to how the interaction between atom components then atoms then molecules and then macrostructures like a tree are so different from one another even though they have the same components?

In: Physics

Answer 1

1. Decoherence. When multiple particles interact with each other, their properties are linked together, because not every possible combination of properties are possible. This makes it very unlikely for a single particle’s different state to interact among themselves, destroying the wave properties.

2. Statistics. When considered the system as a whole, a lot of macroscopic properties (which we observe) are averaged effect of a lot of microscopic properties, so the total outcome has a lot less variance.

3. Entanglement. When an object is being seen in a typical condition, it had already interacted with itself and with the environment for a long time. This causes a huge amount of entanglement, including a lot of entanglement with YOU, the observer. A different state of the tree would be be linked to a different state of you, and a different state of the everything around it.