[Petronski]

Let's start a pool. Question is: how big (size being expressed as common fruit) is the tumor in the higher-reasoning region of Charles Feldman's brain? Ten bucks gets you in.

My choice: a tangelo.

[Prokopton]

Let's start a pool. Question is: how big (size being expressed as common fruit) is the tumor in the higher-reasoning region of Charles Feldman's brain? Ten bucks gets you in.

My choice: a tangelo.

Tangelo? No way his brain is that big. I'd say about the size of a grape, or about double the size of his brain mass.

[Lucius Cornelius Sulla]

My choice: a tangelo.

Keeping it citrus, I'd say a Kumquat.