Like most of the community, I've spent some of my free time during the past few weeks playing around with char-rnn. There's definitely something a little awe inspiring here. I won't waist your time talking about how it works, Karpathy has already done an amazing job there. I wouldn't just read through his blog post though, I'd urge you to take the time to read all the papers and other articles he's linked to. I promise, you won't regret it.