There is a lot that I do not know much about ..............a fact brought home to me just recently when I was allowed to sit in the hot seat, surrounded by instruments and electronic displays that I could barely imagine the utility of, fuel quantities, hydraulic pressures, engine temperatures, GPS, etc etc. Clusters of levers and a windscreen providing a commanding view while the entire environment was dominated by the sound and soft vibrations of barely imaginable raw power, and that was
only on my brother's new tractor.