Q: Are the laws of nature eternal? From a scientific viewpoint, consciousness is epiphenomenal and so is fundamentally governed by laws known to science.  If the laws of nature (not the parameters e.g strength of gravity, speed of light etc) are eternal and unchanging then aren’t they nityam and therefore fundamentally ‘real’?

There is a section of the responses to Q.436 (Ishvara and the existence of fossils) where you suggest (I think) that from a vyAvahArika level, time and causation are real. Just wanted to be clear that from a pAramArthika level, space/time and causation are all unreal?

Note: there are some interesting views on time by quantum physicist Carlo Rovelli (https://qz.com/1279371/this-physicists-ideas-of-time-will-blow-your-mind/) – it seems even from vyAvahArika level one could potentially argue that time is illusory.

A: Everything relating to the empirical universe is mithyA. The nature of the teaching of Advaita is adhyAropa-apavAda, meaning that an explanation is given appropriate to the current level of understanding of the seeker but superseded as their understanding grows. The ‘laws’ of nature are said to be governed by Ishvara but, ultimately, the laws and Ishvara Himself are mithyA. In reality there is only brahman. So, no, the laws are not eternal and not ‘real’. And, yes, you are correct: time and causation also fall into this category (real from the vyAvahArika standpoint but mithyA from the pAramArthika). You must note, though, that mithyA does not mean ‘unreal’ or ‘illusory’; it means that it depends upon brahman for its existence – and brahman is of course real!

Your link sounds interesting; I will have to try to find time to read it.