I wonder, how would airless tires be able to handle offroading? On the one hand they seem like the perfect candidate as running over a rock or stick won't cause

I wonder, how would airless tires be able to handle offroading? On the one hand they seem like the perfect candidate as running over a rock or stick won't cause the tire to puncture. But on the other hand you loose the ability to air down the tire for more traction.