[brookst]

Neural is an adjective. Adjectives do not require their associated nouns to be present. See also: digital computers have mo fingers at all.

[-mlv]

I always thought 'digital' referred to numbers, not fingers.

[bdd8f1df777b]

The derivative meaning has been use so widely that it has surpassed its original one in usage. But it doesn’t change the fact that it originally refers to the fingers.