The summary.
ELECTRICITY COST DOMINATES MINING ECONOMICS
Which makes mining major networks unviable in most of this region — and makes cloud mining offers either fraud or arrangements structured to lose. If it were profitable, the operator would keep the hardware.
HIGHER THROUGHPUT IS ACHIEVED BY REDUCING VERIFIERS
Node requirements determine who can participate, and some high-throughput networks have halted entirely. That demonstrates the trade-off concretely.
MOST ROLLUP SEQUENCERS ARE OPERATED BY A SINGLE PARTY
Censorship and outages are possible. Check whether an escape route exists if the sequencer stops.
A SINGLE CLIENT IMPLEMENTATION IS A SINGLE POINT OF FAILURE
IGNORE MARKET CAPITALISATION AS A MEASURE OF QUALITY
Measure throughput, fees at peak, finality, validator distribution and uptime. Ask of any claim: compared to what, measured how, under what conditions.
TEACH ANYONE HOLDING ASSETS TO READ A BLOCK EXPLORER
It removes dependence on anyone's claim about whether a payment arrived.
NEVER RUN VALIDATOR KEYS IN TWO PLACES
Conflicting signatures are penalised severely, and power and connectivity reliability are the binding local constraint.
