What is this dot? Not fireflies question I fat fingered a key, saw it show up; how do I get rid of it?  What is it? It shows like the orange dot that marks the last selected object,  but it's white; orange dot is still doing it's thing on other objects. ty.
It may be the origin of an object that has no more vertices in it, for example maybe you deleted all the vertices of an object in Edit mode, but didn't delete the object itself in Object mode, so the object itself still exists even if it has no more vertices, and its origin is still displayed. So select it and press X to delete.