100,000,000 Years

Just how long is 100 million years anyway? Never mind that the Earth is billions of years old. That is near impossible to fathom. Is it that hard to believe that over millions of years some plant had a genetic mutation that produced a sticky substance that would stick to the legs of an insect? Is it impossible to comprehend that said insect then transferred those plant genes throughout that plant species as it foraged for food? It seems the most plausible explanation to why pollination exists. It actually seems rather elementary. So why must society reject such a notion and insist that plants were always this way, engineered in the classical sense of the word by some designer that just decided this would be how things worked? Is it because we are conditioned to believe what has been told to us from some book that was written during an age when man had absolutely no idea how nature functioned? This seems to be the most plausible explanation, supported by the fact that religious institutions put people to death for suggesting that the Earth wasn't the center of the Universe. It had to be or everything we have been told is false.