system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does it seem that there are always massive breakthroughs in finding a cure for cancer, then we never hear about it again or It seems we never actually get any closer?
gpt
Because the media is very very very very bad at properly reporting scientific breakthroughs.

Meaning they hype up something gigantically, taking it out of context, presenting it as if it is already ready to be used, but in reality that is never how it goes. Usually what happens is 

1. someone does research, realises that cell X is present in nearly all early stages of cancer Y, and that maybe if we find a way to detect cell X, we can find cancer Y when it is still easy to treat.
2. a paper is written about this, indicating that caution is still needed, tests are still in progress etc etc.
3. Media reports it as AMAZING NEW CANCER BREAKTHROUGH, WE CAN NOW DETECT CANCER EARLY.
4. Scientist cries and drinks.