I Would Say In One Sentence My

I Can Assure You That No String Theorist Would Be Interested In Working On String Theory If It Were Somehow Permanently Beyond Testability. That Would No Longer Be Doing Science.

In The Far, Far Future, Essentially All Matter Will Have Returned To Energy. But Because Of The Enormous Expansion Of Space, This Energy Will Be Spread So Thinly That It Will Hardly Ever Convert Back To Even The Lightest Particles Of Matter. Instead, A Faint Mist Of Light Will Fall For Eternity Through An Ever Colder And Quieter Cosmos.

Black Holes Provide Theoreticians With An Important Theoretical Laboratory To Test Ideas. Conditions Within A Black Hole Are So Extreme, That By Analyzing Aspects Of Black Holes We See Space And Time In An Exotic Environment, One That Has Shed Important, And Sometimes Perplexing, New Light On Their Fundamental Nature.

For Most People, The Major Hurdle In Grasping Modern Insights Into The Nature Of The Universe Is That These Developments Are Usually Phrased Using Mathematics.

I'd Say Many Features Of String Theory Don't Mesh With What We Observe In Everyday Life.