Transactions on Solana — What Sending and Breaking Them Taught Me

Before this week, Solana transactions felt familiar enough to recognize, but not familiar enough to really understand. I could open a transaction in Solana Explorer and identify the parts. I knew there was a signature, an instruction, a fee, and the accounts involved. But that was mostly recognition, not understanding. What changed that for me was actually working through the full flow myself: sending a transfer, tracking confirmation, and then forcing a transaction to fail on purpose. The API a