At least the 1-10-100 scaling makes metric easy for critters with 10 digits... And calculations like "how much energy is needed to heat 1 litre of water by 10

At least the 1-10-100 scaling makes metric easy for critters with 10 digits... And calculations like "how much energy is needed to heat 1 litre of water by 10 Celsius" are a simple multiplication task.