The author compares it to asking about 2+2, but I think it's more closely analogous to asking "What can we say about 4 and 2+2?" Given the ambiguous wording, I

The author compares it to asking about 2+2, but I think it's more closely analogous to asking "What can we say about 4 and 2+2?" Given the ambiguous wording, I wouldn't expect anyone to answer confidently, and lost of intelligent people would answer eight rather than "they're equal."