true, they haven't isolated it, and are just working on assumptions of fragments of genetic material being the thing that's causing people to be sick with X Y or Z, etc. But that doesn't mean there isn't anything either. The default position is that there isn't something unless you can prove it. The spike protein is something, and they are making cells produce it apparently. That can be a part of the something they say exists but haven't proven, only having proven that something, the spike protein, is out there...