I’m still reading the Republicans’ alternative budget (pdf), but I did want to highlight this graph from Republican Paul Ryan’s Wall Street Journal op-ed on the subject, because it’s pretty stupid…
As near as I can tell, Paul Ryan and his staff just took the CBO projections that ended in 2019 and drew a random line, extending upward at about a 45 degree angle, until 2080. There’s no real attempt to make it look scientific.