What is syntergic theory?

It seems there might be a typo in your question. If you meant "synergistic theory," I can provide some information on that. Synergistic theory often refers to the idea that the combined effect of two or more entities working together is greater than the sum of their individual effects. This concept is prevalent across various fields, including biology, medicine, business, and psychology. For instance, in biology, synergistic interactions can occur between different chemicals or organisms that enhance each other's effects. In business, team members may bring unique skills that, when combined, lead to greater productivity and innovation than they would achieve individually. If you meant something specific by "syntergic theory" or if there is a different concept you were referring to, please provide more details, and I would be happy to help!