> Handling with physical goods doesn't mean one knwos before hand the number of customers Sure it does? You can resell them, but if you produce X items, there'

> Handling with physical goods doesn't mean one knwos before hand the number of customers Sure it does? You can resell them, but if you produce X items, there'll be X items. You can't be sued into oblivion after producing one and then learning that it was used by a billion people and 100 of them got cancer.