Pseudorandom sequences typically exhibit statistical randomness while being generated by an entirely deterministic causal process. Such a process is easier to produce than a genuinely random one, and has the benefit that it can be used again and again to produce exactly the same numbers - useful for testing and fixing software.
Another similar explanation suggests that when you âcrackâ your knuckles, or any other joint, it expands the space between your bones, creating negative pressure that draws synovial fluid into the new gap. This influx of synovial fluid is what causes the popping sound and feeling when you crack a knuckle.
At the moment your joints pop, you may wonder exactly what is causing it. It's not an uncommon phenomenon. Generally, it is considered normal and nothing to be concerned about, especially if it occurs infrequently and without pain. It can be hard to pinpoint what is causing the popping sensation. There are a few possible causes of popping. It is believed that ligaments can cause the sensation as they tighten when a joint moves. It also can be related to a tendon snapping around a joint. Popping joints can also be due to rough joint surfaces from cartilage loss and osteophytes associated with osteoarthritis.