Descartes’ famous phrase “I think, therefore I am” (cogito, ergo sum) has been the subject of immense discussion in modern and contemporary philosophy. Is it an inference or a performance (Hintikka)?

Abstract: Blockchain was known by Satoshi Nakamoto in 2008 because of Bitcoin. After more than a decade of development, blockchain has been widely used in medical, digital finance, and electronic ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. David Kindness is a Certified Public Accountant (CPA) and an expert in the fields of ...