Decent Math Encounters Reality

Last week, I put together this raised bed for Andreas, Sandra and Ted.  It's made of cedar construction treated with linseed-oil.  Take a look.  Also note the micro-irrigation tubing sticking out in preparation for filling with soil and compost

The bed is 8x4x2.5ft.  If you multiply that out you get 32ft x 2.5ft or 80 cubic feet.  My truck bed holds a cubic yard, i.e., 27 cubic feet, so you could reasonably calculate that it would take less than three truck loads of substance to fill the raised bed  (72/27 = 2.9).  Such was my calculation when I began filling the raised bed.

However, the soil I filled the bed with was magic soil, or so it seems because in order to fill the bed, I had to shovel in four truckloads of soil and compost.  That's approximately 108 cubic feet.  

Try to wrap your mind around that.  And in the meantime, you can rid your mind of the notion that mathematics adequately describes the world around us.