Royce's Theorem: Intelligence Is Not Computational

[selfAdjoint]

Your correct left-handed or right-handed are exactly the same from the point of view chemically but optical activity and biological properties are not. All proteins that form living things are practically left-handed, there are exceptions. I do not have the specific information maybe someone else knows this and can confirm that it is correct. I realize it is no easy task to classify when something is living, so for the sake of discussion we will say that proteins and cells co-exist in a life process we observe and left-handed molecules are part of the task.

You're still not getting the point. First of all the optical properties are irrelevant, just an early way to test the shape of the molecule. And as for the biological properties, the point is that they would be just a consequence of life starting out "on the left foot" instead of the right. Everything else follows.

Consider a planet just like Earth where life started with the opposite handedness, then everything, biology,optics and all would be reversed.