Thank you, @justdentist! π BTW - the point is, even if the value wouldn't go up and stays the same, you can have $150K at the end of the 4th year, with zero investment and just 0.100 Steem Power earnings per day (if you don't spend it in meantime π, but keeping it in Steem Power to accumulate compound interest). But, more about it in my next post.
Regarding the topic, I would have only one advice! - Write about something or everything you love, are interested in, intrigued with, etc. In other words anything you are passionate about.
Nothing can bring and grab the attention of your readers and follower more than your passionate energy about a certain topic (no matter which one it is).