Blockchains can be hard to grok, in no small part due to all the new terms and concepts that the space comes with. This talk starts with the smallest and simplest part of a blockchain, the *transaction*, and incrementally gets more complex, with each term building upon the others. By the end of this talk, you may even be able to show off your newfound knowledge, such as the difference between secp256k1 and ed22519, or even what makes Hedera technically *not* a blockchain, despite its similarities.