Incurable Bulls

I got several emails from my readers who asked me to explain what do I mean when I use "Incurable Bulls" in my articles.
I came with this term any time I want to talk about speculators who put their heads in the sand and close their eyes to realities and try to sugar code every single news to fool themselves, investors who think hope is strategy, speculators who are not going to accept they could be wrong...

I hope none of my readers are categorized as "incurable bulls" (;