Predictability is an implied property of science. The prime prediction, if is is science it should be repeatable. Other outcomes may be suggested by the results of research.
For example, my analysis of data of others led me to the probable prediction that life in the abyss of the ocean is extended far beyond other's expectations. I used the assumption as follows: an excellent study was done of deep-sea brittle stars by Dr. Frank Rokup. His sampling was done quarterly over a year and analyzed as was reasonable for annual changes. I combined his published data in to one sample, thinking the slow pace of life in the abyss made them equivalent to an instantaneous sample. The result gave a size distribution similar to some long-lived invertebrates in coastal waters where predation was low. This seemed to me to confirm my view of extreme age for some abyssal animals. The graphic results were presented in the last chapter of Invertebrate Zoology, 3rd ed. (Engemann and Hegner, 1981).