What is really different about now, as compared to millions of years ago, is that the human population is vastly larger. So we should leave far more evidence of our existence and level of technology.
We find almost nothing from 3 million years ago, and although our material footprints from today are different than yesterday, it's not clear what will remain after 3-4 million years?? I'm thinking during 3-4 million years of time passing Earth can experience tectonic shifts, or eruptions from major volcanoes, effects of climate change, flooding, etc. I agree there 'should be' fossils but how much can we actually locate after millions of years...
I gotta wonder if anything can be qualified as 'permanent' when it comes to the long term geological effects on Earth?
We do have hominid fossils going back 550 million, and others going back 3 billion years. Your argument flies in the face of the evidence in hand.
How about hominid fossils dating back maybe 3 million years? The only fossils that go back 3 billion years are microscopic. Over the billions of years I'm saying Earth could have had a few cycles of evolution, with the latest cycle becoming what we are today. And how long will our cycle last?
Hominids didnt exist 65 mil ago when the dinos got hit. Supposedly our ancestors that looked like a shrew evolved into hominids . At least that is what science tells us. Who says hominids are as old as you claim?
We don't know if Atlantis existed. But we know there is an entire continent with an ancient history under miles of ice.