Looking to the Present to Understand the Past

In using the present in order to reveal the past, we assume that the forces in the world are essentially the same through all time; for these forces are based on the very nature of matter, and could not have changed. The ocean has always had its waves, and those waves have always acted in the same manner. Running water on the land has ever had the same power of wear and transportation and mathematical value to its force. The laws of chemistry, heat, electricity, and mechanics have been the sa...

 Neil deGrasse Tyson on NASA Funding

First of all, let's clarify what the NASA budget is. Do you realize that the $850 billion dollar bailout, that sum of money is greater than the entire 50-year running budget of NASA? And so when someone says, "We don't have enough money for this space probe," I'm asking, no, it's not that you don't have enough money, it's that the distribution of money that you're spending is warped in some way that you are removing the only thing that gives people something to dream about tomorrow. You rem...