I'll throw a bone to all you law book thumpers in here Speeding is eee leee gulll.. We good? Good.
Now then, a hypothetical. If there weren't left lane turtles and self-appointed traffic enforcer douche canoes, and everyone were respectful enough to drive WITH each other rather than trying to ... do whatever the heck it is they're trying to accomplish by driving against the flow... Well then speed limits could be raised if not eliminated in many cases.
What's one of the primary benefits the tech world is using to push driverless cars? The fact that y'all can't drive! Err, uh, I mean the fact that computers can drive COOPERATIVELY, and thus can safely travel faster and with fewer interruptions in traffic flow.
There is no speed limits in TX. Posted limits are call prudent and responsible speeds. If you can show a prudent reason for exceeding those posted speeds you are good. If you are going 100 in the left lane, it is unlawful not to move over if I’m behind you going 120. I might have a prudent reason to be going 120. Transportation codes 545 351 and 352 if I remember correctly.