But how will it fail?

The wrong answer is, “it won’t.”

If you buy a piece of tech, it will break.

If you buy an asset of some sort, it’s likely to go down in value one day.

If you start a project, you will one day walk away from it.

And everything that is alive will die.

Refusing to answer the question doesn’t make it more likely that it won’t fail. All it does is make the failure more painful.