reading

The second thing you have to know about quantum mechanics is that measuring the system changes its wave function. We can’t predict with certainty what outcome we will see. All we can predict is the probability. And once that measurement is made, the wave function “collapses” into a state that is purely what is observed.

Only the minutest fraction of what my second favourite quantum physicist, Sean Carroll — the first being Karen Barad but she is also, and perhaps more importantly, a philosopher — says is intelligible to me, but I am so glad he is saying it.