That's a great series of questions.
We are concerned about microplastics in human health and particularly the nanoplastics that can freely pass the GI tract barrier and even the blood-brain barrier. We are concerned about very small particles of plastic.
If I may, I will recall my comment about how all plastics today will “not break down chemically” in the future. They will “break“ down “into smaller and smaller pieces,” such that all plastics are a “reservoir” for potential human health risks. Think about a plastic bottle today. In 1,000 years, it might be a million pieces of plastic. We're very worried about that.
I think my time is up, but I believe you had a second question.