Your computer says you have 10 minutes remaining for the dive but your buddy's computer says it is time to ascend. What should you do?

When deciding what to do in this situation, the principle of diving safety and buddy coordination plays a crucial role. The dive buddy system emphasizes that divers must always look out for each other and adhere to the more conservative or restrictive limits to ensure safety during the dive.

If one buddy's computer indicates that it's time to ascend, it likely means that they have reached their no-decompression limit or are approaching a saturation threshold, regardless of what the other computer indicates. Following your buddy's computer, in this case, prioritizes the safety of both divers, as both computers rely on specific algorithms that may yield different results based on each diver’s unique profile and the environments they are operating in.

Other options might tempt divers towards maintaining their own dive profile, but they can introduce risks. Ignoring your buddy's computer in favor of your own could result in potential decompression sickness if your buddy ascends and you remain at depth. Additionally, separately following your respective computers does not uphold the fundamental practice of diving within the buddy system framework, which is centered on mutual support and ensuring safety.

Thus, adhering to your buddy's computer and ascending together is the most prudent choice, reinforcing the importance of teamwork and communication in diving safety protocols.