Metaphysics is a philosophical term, and the history of philosophy refers to the part of philosophy that explores the basic principles of the universe. Is to use an isolated, static and one-sided view (pay attention to the meaning of "one-sided", the most straightforward statement is that what you see is one-sided and incomplete), thinking that everything is isolated and will never change; If there is a change, it is only an increase or decrease in quantity and a change in position. The reason for this increase or decrease or change is not inside things, but outside things. Also called metaphysics. Speculative philosophy is a philosophy that tries to deduce reality from concepts and make the development of the objective world conform to the universal principles constructed by human thinking. Speculative philosophers explore, explain and construct the world based on innate principles, which is an idealistic philosophy. You can find more detailed answers in Baidu.