So people kind of knew asbestos was harmful wayyy before it mostly stopped being used in 1979 (USA). But, it was still used constantly in many industries and ended up everywhere. What do you think is an example of something we find out is DRASTICALLY harmful 10-50 years from now? My guess would be screen time.
Most carbon fiber you might see in the world is sealed with resin. But under that resin, it’s just sheets of woven or non-carbon fiber fabric. And those fibers are just nanometers thick and can easily puncture cell walls the same way as asbestos.