Biochar - interesting!

I found this project on Indiegogo this morning (Indiegogo has so many amazing projects, I want to fund them all!)

BioPreta Sample Project

I looked up biochar in wikipedia, and learned some interesting things about how the ancient technique of smoldering agricultural waste on farming land contributed to keeping the soil and environment healthy.

Source: http://www.biochar-nsr.eu/cms/

Sometimes I have to wonder if in many ways (not all!), our ancestors were so much smarter than we are. Or perhaps not smarter, but wiser. Why go through the trouble of producing chemicals to put on our land if we can use what we don't need to augment the soil instead. Seems like far less work (but alas, would contribute less to the "economy", oh my! note sarcasm in this sentence, which is not always easy to convey in writing).

Trepanation is one way that our ancestors clearly were not smarter nor wiser!