What I’ve gotten out of reading TLP is not detailed psychological theories so much as suggestions for where to look for hypotheses about why people do what they do, e.g. hypotheses focused on preserving a particular self-image. If I find that looking for such hypotheses helps me predict what people do in the future better than looking for other types of hypotheses, that might be considered evidence that TLP’s point of view is a fruitful one.
What I’ve gotten out of reading TLP is not detailed psychological theories so much as suggestions for where to look for hypotheses about why people do what they do, e.g. hypotheses focused on preserving a particular self-image. If I find that looking for such hypotheses helps me predict what people do in the future better than looking for other types of hypotheses, that might be considered evidence that TLP’s point of view is a fruitful one.