Log scale is definitely the best way to predict the future prices of any currency. Most Technical Analysts invest according to the linear scale and get their predictions wrong. I started using the log scale and i am making good profits much better than i used to study the linear scale and invest. I totally agree with your Ethereum predictions of 2018. With the growth in ICO's there are much chances that Ethereum's value will be in 5 digit. I even believe in Waves platform. According to my prediction Waves can be worth 100$ and the projects based on Waves platform can give you x5 return. Wager and Ocean Lab being 2 of them.