You seem to know of a discourse where "microdose" implies that something has no effect. Why would they be taking it if it had no effect? > We know that tiny do

You seem to know of a discourse where "microdose" implies that something has no effect. Why would they be taking it if it had no effect? > We know that tiny doses can harm and hurt humans. We don't know that tiny doses of LSD can harm or hurt humans. What we do observe is that smaller amounts of things tend to have smaller effects than larger amounts of things.