Sort of like a corolla and a jeep. Both have wheels, both can go on dirt roads. Can go on the same trails? Yup. Going to fit 2.3" tires on a hybrid? Not likely. 50 mm travel vs 4-5". Steering and geometry, way different too. Rim width, gearing choices, frame strength and weight all different. But the 29er hardtail can do anything the hybrid can, just put some slicks on, start there.