Evidence for Expanding Quantum Field Theory

Present day quantum field theory (QFT) is founded on canonical quantization, which has served quite well, but also led to several issues. The free describing a particle (with no interaction term) can suddenly become nonrenormalizable the instant suitable term appears. For example, using $\varphi^4_4$, been deemed ``free" with difference from truly [1], [2], [3]. Using same model, affine quantization interacting [4]. This fact alone asserts that and tools of deserve be open their procedures together as significant enlargement QFT.