> But at least it's almost completely inert (unless overheated), which makes it much less likely to be harmful than substitutes. I don’t think that’s a strong

> But at least it's almost completely inert (unless overheated), which makes it much less likely to be harmful than substitutes. I don’t think that’s a strong argument. Asbestos is quite inert, and that is what makes it so harmful. A fiber will, over time, harm more and more cells.