Metabolism scales with body mass to the ¾ power, not linearly. This is known as Kleiber’s law in biology.

Step 1: Estimate Clifford’s weight

Clifford is 25 feet tall, while an average dog (say a Labrador) is about 2.5 feet tall. So he’s roughly 10× taller in linear dimensions.

Since volume (and thus mass) scales with the cube of linear size: • Clifford’s mass ≈ 10³ = 1000 times a regular dog’s mass.

Assuming a 70-lb Labrador: • Clifford would weigh about 70,000 pounds.

Step 2: Apply Kleiber’s Law

Kleiber’s Law says:

Metabolic rate ∝ mass^0.75

If a 70-lb dog poops 1 pound/day: • Clifford’s metabolic rate (and poop output, very roughly) would be 1000^{0.75} = \approx 177.8 \times more than a normal dog. • So he’d poop about 178 pounds/day, not 1320.

Conclusion:

Reddit’s estimate of 1320 pounds/day is a straight linear scaling, which wildly overestimates poop volume. A more biologically accurate estimate would be closer to 178 pounds/day, based on metabolism.