CLEAN : Worlds most expensive painting on display in Madrid

The transcript discusses a family's art collection, focusing on the interest in their paintings, the financial implications, and the eventual sale of a painting. The speaker reflects on the sale, considering what the original artist and their grandfather might have thought about the painting's market value and recognition.

In what ways does the speaker express uncertainty about the future of the paintings?

What reflections does the speaker have about their grandfather's potential reaction to the art's value?