[guntars]

Do atoms decay deterministically?

[tsimionescu]

As long as they are isolated, their state is a superposition of all possible states, and evolves determinsitically, with the amplitude of each of these "sub-states" evolving perfectly determinsitically. If you want to perform a measurement, you choose a possible decomposition of the superposition state and measure along that axis, and you'll get one of the values along that axis, with a probability that is the modulus of the square of the (complex) amplitude of that value.

[Filligree]

Yes, aka. continuously. Interactions with larger systems makes it appear discontinuous.

[wfewras]

I saw the best minds of my generation pithposting on hn.