Posted: Sep 02, 2010 4:01 pm
by Rumraket
I'm quite convinced that it would not be possible to provide an explanation Steve would not somehow be able to intentionally misinterpret :)
In the off chance that he's going to be actually interested in learning something I can clarify that the given colour at any given point on any line, evolved "along the line" from the colour before it in time. The squares are the present, MLUCA is somewhere within an 800 million year past. So time moves from left to right, with biosystems(of various sorts, represented in complexity by colour) evolving accordingly through lineages, along the lines, from blue("simple"), through purple, pink, then red(modern, "complex").