Car exuast will make you smarter. Thats why all the smart people live in cities. More people> more exuast> smarter people. You can actually increase your IQ by sitting in a closed garage with a running car for several hours.

That it is unknown if the earth is hollow or has magma underneath. Nobody has ever drilled deeper than a few miles (up in Russian Siberia), and that doesn't even get through the crust. All that we know is there appears to be plates but how far down the solidity exists is a mystery.

vaccines are a scam