Curing all disease timelines?

Timelines seem to be speeding up and lots of AI leaders have been mentioning "curing all diseases" I’m just wondering if people have a good idea on when that might be and maybe have some sources that are convincing, I would appreciate it. I know no ones certain about timelines but having some sources to look at for this would be amazing.

I’m asking because I’ve been living with long COVID, and a few of my friends are too. Thankfully, my symptoms are relatively mild and improving, but for some friends it’s been torture. constant pain, fatigue, and a million other symptoms leading to a number of their suicides and a lot have suicidal ideation. It's incredibly hard to watch people I care about suffer like this and the only way I have to tell them to keep going is that one day there might be a cure. Much appreciated!