The blog-poster is talking about long-term trends, so it doesn't matter if early-adopters skip on security, the time-horizon is long enough that the consequences will matter.

If we stop and carefully look at our world, security (safety against malicious peers) is an iceberg taken for granted. One might start by summing up the militaries of every country on earth. Add the budgets of most police departments, and a good chunk of the justice system. The energy, material, and labor poured into most weapons, fences, doors, and locks. The CPU cycles used in all encryption, and most of the hashing.

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