A Good Knife Is Also Permaculture?

Got this knife in the late 90's for less than USD30.  Around RM70.00 then,  if memory serves me right.

It is a Camillus Becker Knife & Tool, BK 7, made with high carbon 0170-6C steel.

This original version, in mint condition sells for USD185 on ebay today.

The current version by Ka-Bar sells for around USD65 on ebay.  There're some reviews that compare it somewhat negatively against the original version. However, on youtube (type kabar BK 7) there are a lot of guys who love the Ka-Bar version.

You can see that our knife has been well used; the powder-coated black color on the blade is almost gone. 

A full tang knife is balanced around the middle of the knife and is good for work like removing the rim of a tire. It is also good for close quarter combat where a stabbing motion is used.  For that reason, apparently many American soldiers in Iraq bring along a BK 7.  A half tang such as our typical 'parang' is blade-heavy and is good for slashing work. Removing a rim with a blade-heavy knife does not allow you to use your body weight and hence you will tire after just a few tires. 

Santa, our worker from Nepal takes a casual 30 secs to remove the rim of this used tire using the BK 7:

Santa moves the knife outwards in the video. That's not the preferred method as it is relying on the sharpness of the blade and an unnatural positioning which will strain the arm muscles.  I think Santa woke up on the wrong side of the bed.  

I prefer an inward moving knife which allows me to use my body weight in an up-down movement and my arm muscle do not cramp up after an hour or so of such work since it is my back muscle and my weight that's doing the work, not the arm.

Knives that are made well, such as the BK 7, demonstrates the principles of permaculture in manufacturing: making things well, using minimal material, and to last a lifetime.