Randomness!
There are some super smart guys on this forum who think they can predict coins like LTC due to actual facts. It's almost hilarious if it wasn't so pathetic. The truth is 90% of big moves are irrational and based on intangible human moods and whims.
I've made more money than most simply sticking my finger in the air and testing the mood, often being contrarian rather than following the crowd. But seriously logic is the last thing you want to follow.
Definitely logic should be the first one we must follow. I was looking at the exchange last week and I saw XRP at less than 1k satoshi, I told my friend to invest on XRP since it has been too long that this coins had been pump and probably the following days will be the day. My friend took my advice and bought XRP and now thanking me that he has almost made 12x profit from the trade. I don't know, it only logical to think that all popular coins are pumping and XRP had yet to pump. And my speculation is right.