My belief is that Tarot is an excellent tool for predicting the future and can do it as well as any other tool. The question I guess though is not if Tarot works in that capacity, but if the future can be predicted at all.
The thing about the future that I have learn as a reader is that the future is fluid and changable. It is not "written in stone" as the saying goes. For the most part it is not what most of us learnt growing up that there is some kind of Fate and the future that we are headed to in unchangable.
Most times there is not THE future to predict, when it comes to asking if Tarot can predict the future. There are, at most moments in our lives, a number of paths before us that can lead to different futures. What Tarot can do, and it does it admirably is to tell us which of the possible futures we are heading towards at the exact moment in time the reading was done. The thing is that that future will more often that not materialise, because people tend to be creatures of habit and to react in predictable ways. But that future CAN in theory change at any moment and sometiems ti just does.
I do read often about the future but on important topics, I will re-ask the question if something in the situation has clearly changes, just to see if the future has changed or every month or two to be sure.
What I personally find a more productive method of working with the future is doing readings to create teh future you want, rather than jsut passively asking what it will be.
What I do is decide where I want to be in the future, let's say in two years and then I ask the cards "What steps do I need to take to get me to "X" (where I want to be in that future by two years from now?",,,pull about 8-10 cards and then TAKE those steps. Then I keep checking in every month or so to ask which future I am heading towards in that area by two years from now. If not the same as what I wanted, i ask again what steps i need to take to get there. And when teh cards tell me the future I am headindg towards is one and the same as the one I set otu to create, my work is done. I beleive I have used it successfully in the past. And I had faith in it.
Babs