fague, hope i get your 'name' correct

your question many people can answer better than me, just keep this in mind,
Many things are 'predetermined' and 'set' by the experts of various fields, we layman have no say and can just follow the rules/definition

, unless u become an expert yourself and change the rules

.... however, provided others must be willing to listen to u too...

just like 'Continent', strictly means only the landmass, not the islands. However islands around the continents are usually considered as part of the Continent and used the same name as the Continent e.g. Europe, Africa and just called 'Continent' for short - Australia is the only exception
your questions are really on the English language, and Science. if u are not a Linguist or Scientist, u blame me also no use, just L L accept the fact and learn the fact to become a more knowledgeable person

there are many things we don't know, no harm hearing more and learning new things all the time
