Podcasting, right now, is a little bit like community radio in the 70s ... Anybody can start one. There are a million podcasts in the English language. Only a tiny, tiny top of a pinhead number of those podcasts have over 50,000 listeners a week ... And even a smaller, atomic, molecule fraction of that have a million or more listeners a week. It doesn't mean that it's impossible to gain that audience. The beauty of podcasting is that the barrier to entry is very low. Anybody can start recording themselves and upload it to these platforms.