Conversation so far:
What is The Love Song of J. Alfred Prufrock for T.S. Eliot?
The Love Song of J. Alfred Prufrock, commonly known as Prufrock, is the first professionally published poem by American-born British poet T. S. Eliot.
What is interesting about the poem The Love Song of J. Alfred Prufrock by T. S. Eliot?
Seen as heralding a paradigmatic cultural shift from late 19th-century Romantic verse and Georgian lyrics to Modernism.
How is the poem The Love Song of J. Alfred Prufrock by T. S. Eliot written?
The poem's structure was heavily influenced by Eliot's extensive reading of Dante Alighieri and makes several references to the Bible and other literary works.
When was the poem The Love Song of J. Alfred Prufrock by T. S. Eliot written?
Eliot wrote The Love Song of J. Alfred Prufrock between February 1910 and July or August 1911.
What is the poem The Love Song of J. Alfred Prufrock by T. S. Eliot about?
Prufrock laments his physical and intellectual inertia, the lost opportunities in his life and lack of spiritual progress, and he is haunted by reminders of unattained carnal love.
Is T. S. Eliots work similar to any other poets?
In a 1959 interview, Eliot said: I'd say that my poetry has... more in common with my distinguished contemporaries in America than with anything written in my generation in England.“
Was T. S. Eliot a fan of Hamlet?
Hamlet and His Problems is an essay written by T.S. Eliot in 1919 that offers a critical reading of Hamlet, claiming that Hamlet is most certainly an artistic failure.“
Is there anything else interesting on T. S. Eliot besides Hamlet and His Problems, the 1959 interview, similarities with other poets, The Love Song of J. Alfred Prufrock seen as heralding a paradigmatic culture shift from late 19th-century Romantic verse and Georgian lyrics to Modernism, the plot of The Love Song of J. Alfred Prufrock, when The Love Song of J. Alfred Prufrock was written, and how The Love Song of J. Alfred Prufrock was written?
The now-famous opening lines of The Love Song of J. Alfred Prufrock, comparing the evening sky to a patient etherised upon a table, were considered shocking and offensive.

Question: Why were the lines shocking?
Self-contained rewrite: Why were the now-famous opening lines of The Love Song of J. Alfred Prufrock, comparing the evening sky to a patient etherised upon a table, shocking?