[semi-extrinsic]

It's not. Photosynthesis is a chemical reaction where light provides energy and that only involves gas, liquid and solid states of matter.

These guys are talking about entirely different states of matter.

[codeulike]

I seem to remember there were some mysteries around how photosynthesis works. Although looking at wikipedia it seems quite comprehensively mapped out now

[blix]

This experiment only involves solids. The new phase is a different electronic structure of the same crystal.