Punters need to understand that in order for any of these junior miners to ever realise their 'dream' of producing a commodity, you have to first have enough money to blow on a board of 3-6 directors who won't settle for anything less than $200-500k for 5-10 years. The only other salvation is if you actually do have a resource that is completely essential to the world. But even then you have to have enough cash in the kitty for directors to feather their own lavish lives before anything can possibly be let for punter who maidenly jump aboard the train.
IMO if you are a younger investor, learn from older folks mistakes. You learn quicker when it costs you hard earned. Do not trust in the ilk that currently is still very much floating about in board land. We haven't yet had a decent purge so hold onto your cash and wait for a decent sell off. Value is only evident when the parasites are feasting on themselves.