How do you define free will for yourself? Do you believe that humans really have free will? If we don’t, do you think this presents a challenge to human notions of morality and ethics? Explain your answer.
Free Will: Ability to consciously and independently take any decision without any outside interference or influence. Humans having free will depends largely on what kind of decisions is being taken. Yes, one can argue that whatever we are doing is not our own decision so it doesn’t matter what we end up doing.

Well, that has been the general trend in science after all. What we thought once to be true and fundamental eventually gets replaced by a better model. String theory is asking some very fundamental questions and trying to unify all laws into one fundamental law or unify physics.

Space not being fundamental actually does make sense. We are yet to unravel lot mysteries for eg. how dark matter, black or warm hole interact with the space is still unknown to us, even the bending of space by gravity.