Considering how much of Homer must have been oral tradition, and in parallel the fidelity of the oral tradition of the Hadith, there's the outsider question "yes, but did Homer have the Synaesthesia, or did somebody else" in this too.

I tend to think highly alliterative, poetic language has licence to use words for their descriptive quality, their synaesthetic quality, their meter, and just because you goddam' like them. But then, somebody has to remember in the moment and pass it on.

We can all remember "but madam, we're now just dickering over the price" but we tend to confuse Oscar Wilde and Churchill. And that isn't exactly what either of them said either. Thats under two centuries of distortion of the mostly oral, partly written tradition.

The Iron Curtain was only a passing comment to a graduation ceremony in a University. Who knew it would spawn the Iron Lady in half a century?

Iron Curtain. It's going to live forever. The Berlin wall was mostly Concrete. The barbed wire is made of steel, because Iron isn't very suitable for the job. The man of steel was something else. Is that why Churchill went to the Iron curtain? Remember, he'd lived through the politics of "the Iron guard" in Romania. "Iron" as a metaphor had been around politics for a while.

Iron fist in a velvet glove was Bismark. If you're doing the barrier between east and west, in the immediate post war period, the break line is Germany. Iron it is then.

Really? the Iron curtain was the guns and tanks and bayonets behind the barrier(s) not the curtain/wall itself. It was the posture.

Was the sea wine-coloured? Do we infer Greek wine was green? No.. not really. But it's a great line.