Eyewitness testimony is a personal experience that's been well proven to be poorly correlated with others' personal experience of the same event. You may be redefining "fact".
Once we've stripped the contextual stuff from your sentence, your sentence is a fact in a similar way to "1 = 1" being a fact. These kinds of facts are not that terribly interesting, because they are context-free, and context is usually the entire point of a fact.
Oh, and I would argue that your laptop does not run indefinitely without power is a very personal experience, at least for me.
My point is that there's a method by which we start from observations and, through a process that (critically) involves other people, we reach an objective understanding of a subject. The observations aren't facts, but the conclusions can be.