I found a study that says that dried cucumbers go up in calories because of this or that getting concentrated, but like, the raw cucumber even if eaten whole with all that stuff in there, it still has a minuscule amount of calories. How does drying it raise the calories? Please explain like I'm 5.

The study: https://www.researchgate.net/publication/292994599_Nutritive_value_of_convection-dried_Cucumis_sativus

Edit: I tried rereading it but I still don't get it. If you have a bucket of water with 10 stones in it, and then freeze or steam it, we're still looking at 10 stones. I don't get how this works.