Conversation so far:
What is a laser turntable for the phonograph record?
a laser turntable uses a laser to read vinyl discs optically, without physical contact.
When was the laser turntable created?
the laser turntable was finally put on sale in 1997 – twenty years after the initial proposal
Did the laser turnable become popular?
its expense limits use primarily to digital archiving of analog records, and the laser does not play back colored vinyl or picture discs

Question: What did you find interesting in this section?
Self-contained rewrite: What did you find interesting in the laser turntable section besides creation, and popularity?