Science is defined as a system of knowledge that uncovers empirical truths through the scientific method, while philosophy studies foundational ideas like knowledge, truth, and reasoning. Consider the terminality of a PhD, a Doctor of Philosophy degree. It is a degree in applying logic to a specific field. But a PhD is not required to think logically. Anybody can think logically, which is the same as thinking philosophically.
Knowledge is acquired through two methods. A posteriori, or empirical knowledge, is knowledge derived from experience, observation, and therefore memories. A priori, or logical deduction, is knowledge gained independently of experience, like mathematics. Without empirical data, you can know 10 of something plus ten of something equals 20 of something.
In fact, as you read and interpret these symbols known as letters, sequenced together to form words, which form sentences to convey complete thoughts, you are using a priori reasoning. Similarly, when listening to spoken words, we are logically interpreting the sounds to form coherent ideas. All reasoning, whether in reading or listening, involves contemplation or, deductive thinking, happening in the present moment.
Economics is an a priori science, based on logical reasoning rather than empirical data. Universities misrepresent it as an empirical science, using past data, such as charts and graphs, to predict future events. For instance, taxing a business $50,000 logically reduces its ability to invest, without needing empirical proof.