Do you have questions about gravity? Have you thought about why nothing REALLY big exists today in nature? Have you ever wondered how 30-foot leather birds were once able to fly? If so, today is your lucky day because Jose Canseco, the world's best Twitter user, has taken to the internet to explain his fascinating theories about gravity, dinosaurs and giant birds.

It all started innocently enough, with a consideration of jam bands.

who likes phish — Jose Canseco (@JoseCanseco) February 18, 2013

Then you will love umphrey's McGee.I will be at their show at the house of blues in vegas on march 21st.#umphreak — Jose Canseco (@JoseCanseco) February 18, 2013

Those tweets got Canseco thinking about one of science's greatest mysteries.

More thoughts on gravity tomorrow — Jose Canseco (@JoseCanseco) February 18, 2013

Thankfully, for all of us, Canseco was good to his word. Just over an hour ago, he launched into an amazing rant about gravity and how it's changed over the years.

Ancient gravity was much weaker — Jose Canseco (@JoseCanseco) February 19, 2013

You ever wonder why nothing REALLY big exists today in nature — Jose Canseco (@JoseCanseco) February 19, 2013

Animal tissue of muscles and ligaments could not support huge dinosaurs even standing up or pump blood up 60 foot necks — Jose Canseco (@JoseCanseco) February 19, 2013

Gravity had to be weaker to make dinosaurs nimble — Jose Canseco (@JoseCanseco) February 19, 2013

My theory is the core of the planet shifted when single continent formed to keep us in a balanced spin — Jose Canseco (@JoseCanseco) February 19, 2013

I may not be 100% right but think about it.How else could 30 foot leather birds fly? — Jose Canseco (@JoseCanseco) February 19, 2013

Think about it. Jose is making some good points, no? There's at least enough here for our next installment of Hey, Science.