I’d like to agree, but the reality is that people are right at their limit of driving ability at 120. While I’d like to see realistic speed limits, we need to raise driver skill and awareness dramatically.
Yep, That's the catch. Steering, tires, suspension and powertrain in modern cars are easily able to handle higher speed limits. The limiting factor is the nut behind the wheel.
I do agree that it makes sense for modern divided highways somewhere sparely populated and mostly flat. Heck, for that matter there are parts of the Maine Turnpike that have 2+ mile straightaways where often there is only 1 or 2 other cars in sight.