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Carlisle Blues said:There is only resistance when people do not want any advances or there can be no improvement; for example the wheel...it is still turning and the design has not changed.
Certain fundemental machinces can't be improved as a basic design but wheels have changed- you no longer put wooden wheels on your vehical. Today regular tires have benefitted from racing technology: last longer, handle well and deal with the rain better than those of 10 years ago.
I think one problem is that people are doing things that need their focus like driving or being the engineer of a train and insist on doing other things like texting. When it takes their attention away from what they should focus on that's when the bad things happen.