What are the key differences between free soloing and free climbing, and how do these techniques impact the safety and difficulty of ascending a route without the use of ropes or protection?

Free soloing and free climbing are both techniques used in rock climbing without the use of ropes or protection, but they have key differences. Free soloing involves climbing without any safety equipment at all, while free climbing allows the use of ropes and protection for safety but only for support, not for aid in ascending.

The main impact of these techniques on safety and difficulty is that free soloing is extremely risky and dangerous, as any mistake can result in a fall with potentially fatal consequences. On the other hand, free climbing with ropes and protection provides a safety net in case of a fall, making it a safer option. However, free climbing without the aid of ropes or protection still requires a high level of skill and technique, making it a challenging and difficult endeavor.