In a new analysis, published in the current issue of the journal Nature, the zircons, the only bits of earth older than 4 billion years definitively known to have survived, provide another tantalizing hint about the Hadean period. Dr. Harrison and two U.C.L.A. colleagues, Michelle Hopkins, a graduate student, and Craig Manning, a professor of geology and geochemistry, report that minerals trapped inside zircons offer evidence that the processes of plate tectonics — the forces that push around the planet’s outer crust, forming and shaping the continents and oceans — had already begun.

“We thought we knew something we didn’t,” said T. Mark Harrison, a
professor of geochemistry at the University of California, Los Angeles.
In hindsight the evidence was just not there.

I suspect that these words will be said again, as they have before... and then covered up with the same " WE know how it happened because we are the scientific establishment- teach it in the schools and don't question us" garbage.

What?

This is how science works, theories are proposed, challenged. They survive as long as they have evidence supporting them. If the evidence supports another conclusion then they go with that. This is not garbage, this a good thing.

The problem I see is - who does finance the research today? Free research is passed - the most scientists search for big corporations, the owners of the world. And the money they get is for researches that bring those big earnings and therefore published results will be untrue, because many is veiled, mostly in genetics, but in all other sciences too. About this, dogmata are rising in significance. Today a theory often is reported as the truth - 40 years ago this was much lesser seen in the exact sciences! Real research won't be possible, if the result is specified at first.