The word is peaked. Dak has consistently improved every year. The only exception has been the dip in year two when the league sacked Zeke for 6 games. Dak was not ready to carry the load back then. But something that never gets talked about is that after starting out 0-3 without Zeke, I believe Dak has won his last 5 starts when Zeke didn't suit up. The notion that a QB cannot improve beyond some arbitrary number of years is complete hogwash. Hell Rodgers is playing better at 37 than he did at 27. Brady kept getting better into his late 30's. As did Brees. Okay those are all time greats so maybe you're not comfortable placing Dak in that category.. Do the names Jeff Garcia, Chris Chandler, Rich Gannon, or Vinny Testaverde mean anything to you? Those are all QBs who made their first pro bowl AFTER the age of 30 if I'm not mistaken. Hell our own Tony Romo was a MUCH better QB at 36 than he was at 26. Because so much of it is mental, QB is the one position that a guy can keep improving throughout his entire career, providing his body holds up. Which with his build, Dak should have no problem with.