It's important to note that while the effective size of the dog can be arbitrarily large, it's not any more of a good dog than the two original dogs.

"Interferometry", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

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It's important to note that while the effective size of the dog can be arbitrarily large, it's not any more of a good dog than the two original dogs.