system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is Bluetooth audio so unpredictable? Some times you can listen to music from seemingly impossible distances, when other times just moving your hand near your device causes an interuption.
gpt
That's just how digital transmission works. Data is sent with some amount of error correction, which allows for let's say 5% of data loss. Right until 5% the quality is going to be perfect. The moment that is exceeded, error correction fails and you have a gap in your audio.

With wireless transmission there's all sort of interference from walls and other devices, so even small changes in positioning can be what sends you over the edge, if you were already close to it.

It works the same over copper which is why premium HDMI cables are nonsense -- it either works perfectly, or it works very badly or not at all. If a cheap cable works as it should a more expensive one isn't going to gain anything.