> Imagine dropping by for your weekly ultra-targeted radiation therapy to kill this week's tumors before going for lunch. I suspect if we ever reach such a dis

> Imagine dropping by for your weekly ultra-targeted radiation therapy to kill this week's tumors before going for lunch. I suspect if we ever reach such a distant future, we'll consider most radiation therapy to be a very blunt and barbaric instrument (even if ultra-targeted) and use some kind of nanotechnology instead. Some engineered virus or bacterium or nanomachine that hunts down the carcinogenic cells.