I was always taught the same thing. Most people use "I think" or "in my opinion" in a way that weakens their persuasive argument (what high school students typi

I was always taught the same thing. Most people use "I think" or "in my opinion" in a way that weakens their persuasive argument (what high school students typically have to write), so forbidding it forces them to write with confidence in their position. It's part of the formality of that type of writing. In contrast, blogs are much more personal. I think it's ok to say that your statement is your opinion in that context, especially when you're writing a prediction like this. Personally, I like it as it is. You took a bold stance and made a radical prediction, forcing the reader to think about how your inevitable future contrasts with their own predictions. If only that happened more on the internet.