Most crypto education focuses on price charts. A more durable lens is operational risk: who holds the keys, who can fail, and what breaks when they do.

Use three buckets.
1. Custody risk: self-custody means you bear key management; third-party custody shifts it to the platform but adds counterparty exposure.
2. Counterparty risk: the borrower, exchange, or issuer may not return your funds.
3. Operational risk: code bugs, upgrade failures, and security delays can halt or drain systems even when prices are stable.

Concrete example: Ethereum recently delayed the Glamsterdam Hoodi testnet after ChainSecurity flagged 13 real-world smart contracts potentially affected by gas changes. That is operational risk visible before mainnet impact, not a price signal.

Takeaway: evaluate custody, counterparty, and operational layers separately. A token can hold price while its infrastructure carries hidden failure modes. Data on testnet delays is from the research excerpt; no broader frequency claim is made.