Straight lines in nature
"There are none" some say: others say this is a myth. You might say a tree trunk is straight but I could prove that it isn't, the same with a blade of grass or the horizon, it may look straight to you, and this could be all that matters. A straight line is open to interpretation and means a different thing to a writer a geometer and a landscape designer. Like all phrases lifted out of context it can lead to argument, the last time I heard someone say "There are no straight lines in nature" he followed this by saying "There are no straight lines anywhere" which I thought was particularly daft. So here is my take: If there are no straight lines in nature how does a focal point work?