Some judges believe extreme 400 year sentences send a message.
I agree, certain sentences might send a message to a few potential, budding, or active criminal types.
I think the message, as received by the populace for which it is intended, becomes I'll beat a 400 year sentence because my life expectancy is less than 15% of the 400 years.
Suddenly, the sentenced party realizes he/she/it probably won't be alive another 60 or so years.
Bottom line, a 400 year sentence can be imposed, but the shelf life of human beings rarely exceeds 100 years, much less 400.
Age at death: 969
Despite Methuselah's small mention in Genesis, he's become well-known for his near-millennium of life, outliving all other pre-Flood patriarchs. After the Flood, lifespans gradually shortened, with Noah's sons living only a few hundred years, with other famed figures like Moses only living to 120.
Age at death: 777
Lamech, son of Methuselah, is descended from Seth's line, though he's easily confused with the Lamech (son of Methushael) descended from Cain. In addition to his extended life and being Noah's father, Lamech is notably the first mentioned polygamist in the Bible, taking both Adah and Zillah as his wives.