>>333129
Yes, but the truth is contained within WS Burroughs Cities of the Red Night...

Of course not, fuck off.

>>333129
No, or we would find archaeological evidence.

If dinosaurs can fossilise and last 65 million+ years then an advanced human civilisation would have left behind shit loads.

>>333232
What if they used completely biodegradable materials?

>>333391
What if my my dick is biodegradable?

>>333129

No.

>>333129
Well, yeah this happened several times.

For instance, the collapse of the IVC.

>>333129
If it did, and some war happened that obliterated all trace of them, then we would have at least some trace of THEIR early stages, since we have evidence of fucking dinosaurs.

>>333391
Why....

And it would still fossilize.

>>333543
>>333232


To be fair, 65 million year old dinosaur fossils are a minuscule example of what was and their fossilization was entirely circumstantial.

They are a rarity in a broader context.

How advanced?

Something comparable to ours would be very noticable in geological strata.

Strange occurance of certain rare elements in certain strata (or more common ones locally unnaturally abundant), or if they went nuclear that would be too VERY noticeable.