If I want to say that on the face of it something is valuable, but later it turns out that, actually, it is without value, which sentence applies more:
1 At first, I thought it would be valuable.
2 At first, I had thought it would be valuable.
I read upon it somewhere, but I can not recover the info.
To my mind, the second means that it later turned out we had made the wrong assumption.
The first does not imply the future outcome.
If none of them are correct to mean what I want to say, what would you say?
Thanks