more from R.D. Ingthorsson

Single Idea 22622

[catalogued under 26. Natural Theory / D. Laws of Nature / 1. Laws of Nature]

Full Idea

Because it makes no difference to exchange the time variable t with its contrary -t, in the fundamental laws of physics, any process can be described as going either backwards or forwards in time, without violating those laws.

Gist of Idea

Any process can go backwards or forwards in time without violating the basic laws of physics


R.D. Ingthorsson (A Powerful Particulars View of Causation [2021], 4.13)

Book Reference

'Oxford Handbook of Philosophy of Time', ed/tr. Callender,Craig [OUP 2013], p.79

A Reaction

A few philosophers read a lot into this, but I don't. The inverse scenario may not breach the laws of physics, but it does involve time going backwards, which I think we can skip for now. Entropy would be interesting. Can information flow backwards?