It's explicitly shown in the Jetsons movie, at least. The pollution fog has spread to the altitude of the city, so they all ratchet their buildings up a little bit higher to keep avoiding it.

Don't let that butterfly touch you!

Especially when tradition is so delicious.

But not all infinities are equal.

Chiming in to say that syafiqjabar is correct. First name to be published (almost) always wins.

Precedence is given to whichever name was used first, not to which name describes the older member of the species. It's not your fault at all, though, this whole thing was terribly misreported in the media. *Everybody* heard the same (wrong) stories.

As usual, one of the best illustrations of this concept comes from Dinosaurs (starting at about 1:00).

The same way you can build a city out of ore and wheat . . . it's a simplified game mechanic.

Torosaurus and Triceratops may or may not have been the same dinosaur, but if they were, Triceratops still has precedence. Torosaurus would disappear, Triceratops would remain.

It's amusing that the Pringles lawyers (in the linked story mid-article) had the gall to argue in court that Pringles are not a potato-based food, when every can of Pringles has "Potato crisps" stamped right on the front.

But flour and sawdust are not the same thing, nor are steak and semen. Cellulose *derived* from flour and cellulose *derived* from sawdust ARE the same thing: cellulose. It's dishonest to claim that it's STILL sawdust when it clearly no longer is.

No, that is well-explained. And you're right, I suppose an instantaneous "jump" as in Back to the Future would be different than the journey of Primer or The Time Machine.

Cellulose is "wood" about as much as gelatin is beef. There's a reason the article you linked to put the word wood in quotation marks, and then referred to it as cellulose thereafter.

We don't have any problem staying with the earth while moving forward in time . . . why would backward work differently?

www.grandcanyonskywalk.com

WERE bathing and getting "fresh air" hygienic, back in those places and in those days?

Clearly it's the added protection provided by Kim Possible that keeps cancer at bay.

There's evidence of human habitation at 16,000 years ago, and (obviously) plenty of evidence that people have been here *more* recently than that. But there's two sites that are 50 and 55 thousand years old . . . with nothing in between (no 40, 30, or 20 thousand year old sites).

The spear points, yes. There have been spear-throwing hooks made from bone and ivory found from the same time period, but the actual part that went into the animal was always made from stone.

Nice leg feathers, too.