Why is evolution hiding?

[Mudhammam]

For example if you stood back to back with the chimpanzee at your local zoo. Beside each of you we lined up your mothers, their mothers, their mothers mothers and so on until each line reached all the way back to your last common ancestor. Then if a stranger looked at each individual in both lines starting at you and working their way back to the common ancestor then started back up the other line until they reached the living chimp the chances are they would not be able to identify the point in either line where homo stopped or pan started.

Do you think the gaps in the fossil record pose any problems for gradualism? Now, I know there are hundreds or thousands of these transitional fossils, but that seems kind of scarce if there are actually five billion+ fossils (I think that's the figure) that we have discovered. Are like 4.5 billion of these fossils simple microbes or fish or modern animals?