poets use repetition for importance for effect and to make a phrase sound more
The most probably reason that rhyme and repetition first found their ways into poems is that they make the poem easier to remember. Before writing things down was common, poetry was often recited and part of an oral tradition. This means the person reciting would have to remember long works and the rhyme and repetition makes things easier to recall - in much the same way that nursery rhymes are easy to remember because of their rhyme as well as many popular songs.
Probable gold.
In medieval Europe ( Middle Ages ) travelling troubadours cultivated a lyrical poetry, usually accompanied by music,to entertain royalty and commoners alike. Probably they soon discovered that using end-rhymes and simple, frequent repetition were very effective literary devices to captivate or charm their audiences, especially women. Those early, popular, romantic poems, chants and songs have had a profound influence on poets ever since. It's hard to argue with success.
Very probable not
the ocean
It means that Dingobot has thinks he has found some unnecessary repetition that can decline the quality of an answer.
You think probable to radium.
probable cause
Very probable ammonia is known from the antiquity.
"The repetition of her name made it feel old and worn down every time someone used it." or: "Repetition is the only way we learn."
You think probable to nicotine.
You think probable to iodine.