How do Young Earth Creationists respond to the 'Last Thursdayism' objection?

> **Last Thursdayism** (alternately **Last Tuesdayism** or **Last Wednesdayism**) is the idea that the universe was created last Thursday, but with the physical appearance of being billions of years old. It's also a counter to the creationism theory. Under Last Thursdayism, books, [fossils](https://rationalwiki.org/wiki/Fossil) , [light already on the way from distant stars](https://rationalwiki.org/wiki/Starlight_problem) , and *literally everything* (including your memories of the time before last Thursday) were all formed at the time of creation (last Thursday) in a state such that they appear much older. > > Last Thursdayism functions both as a philosophical point on how our observations may not match with "reality" and a [reductio ad absurdum](https://rationalwiki.org/wiki/Reductio_ad_absurdum) of the young-Earth creationist idea of the [omphalos hypothesis](https://rationalwiki.org/wiki/Omphalos_hypothesis) : if the world was created 6,000 years ago with the appearance of being made billions of years ago, what is there to stop us from claiming it was made Last Thursday? > > The debate on whether Last Thursdayism is true has raged on ever since the creation of the universe last Thursday. > > (source: [Last Thursdayism - RationalWiki](https://rationalwiki.org/wiki/Last_Thursdayism)) In short, Last Thurdayism is put forward as an attempt to do a *reductio ad absurdum* of the Young Earth Creationist notion that the universe was created relatively recently with the appearance of age. How do Young Earth Creationists go about showing that this attempt isn't successful?