I thought so too, until my friend told me that CIT PhD and an applied research scientist in a FANNG company derived an incremental Gaussian mixture model withou

I thought so too, until my friend told me that CIT PhD and an applied research scientist in a FANNG company derived an incremental Gaussian mixture model without using the property of GMM at all, and another CIT PhD in the same team defended the algorithm by saying something like "but the intuition is correct". I couldn't believe my ears.