[saiya-jin]

There is one constantly happening thing that wipes the slate clean - tectonic plates movement. You can be lucky with a spot that doesn't disappear into Earth's mantle, there are few spots like that on Earth, but its not granted.

[nemo]

While it is true that over deep time less and less survives due to subduction not all areas do, and human activity covers vast surfaces now leaving many artifacts and traces. You should also consider that we do have fossils from > 3 billion years ago. Certainly not everything will survive but there’s no question some human traces will persist for hundreds of millions of years.