For starters of course Froome knew who nibali was, the point is that he wasn't following cycling so didn't know he'd transferred to Astana. Know froome knows what everyone is doing what training, where and that gives him an idea on who to look out for during races a huge advantage imo. Along with froome only starting to race at a high level in Europe in 2007 so didn't know tactics. Basically froome breakthrough in 2011 was only 4 years after turning full time pro. So really he wasn't 26 cycling years but 22 so normal. So yes froome is unusual because he come from different background and is probably the best talent out there. To go from dirt roads in Kenya to winning the tour is one of the greatest sporting stories achievements and it really isn't cool to permanently without solid evidence accuse him of illegal methods regardless of what you think of him.