A rainy Causeway Bay habit: write the assumptions

Paper beside the monitor beats memory when funding, fees, and margin mode change overnight.

After every Risk Clinic we send a one-page note. Clients who keep a similar scrap beside the PC — date, exchange, contract, margin mode, fee rate, funding assumption — can reopen Smart Crypto Calculator PC the next morning and recreate the same liquidation line.

The habit sounds small. It prevents arguing with a number you cannot rebuild. On wet evenings in Causeway Bay, when screens glare and patience thins, that scrap of paper is often the most valuable leave-behind from the session.