Critique Non-Advaita Schools (A Contemporary Research)

What constitutes a philosophy? What constitutes a critique? Are there sufficient common denominators on which one philosophy can critique another? Even if it is possible to critique, what could be the purpose of such a critique? Who could be the audience the critique is addressed to? What is a reasonable approach to critique?

Pursuit of truth is the most personal goal since it cannot be pursued for another’s sake; every philosophy boasts of siddhas who have made it; yet, truth varies from being one non-dual entity, to being non-existent, to being many which are self- contradictory aJl at the same time. Could aJl the siddhas have made it, despite truth being different for everyone? Is siddhi independent of truth? If not, how to know what the real truth is?

All philosophies either arrived at and/or enumerated their conclusions based on popular worldly models. However, the advent of Science has challenged many such conclusions; Is there a need to upgrade the traditional narrative in the light of scientific discoveries? Would that result in truth itself being upgraded?