Late Bloomer is commonly used to refer to young children who develop skills such as language, reading, or social interaction later than others of their age.
The Theory of Factual Evidence states that theories can be proven true if a sufficient amount of factual evidence is provided. All ways of proof involve the assumption that this theory is true. Despite the importance of this theory (without it, nothing could be proven), it has yet to be proven correct.
Empirical evidence (also empirical data, sense experience, empirical knowledge , or the a posteriori) is a source of knowledge acquired by means of observation or experimentation. Empirical evidence is information that justifies a belief in the truth or falsity of an empirical claim. In the empiricist view, one can only claim to have knowledge when one has a true belief based on empirical evidence .