Ryan's plan is bad because
1) it guarantees federal responsibility for everybody's standard of living
2) it lowballs the defined benefit you get.
If everybody admits the feds owe me a living, why should I settle for $20,000 a year in vouchers? Couldn't I live better with $25k? What's the moral basis to deny it to me? If I'm cool getting a $20k handout for breathing won't I vote for the guy promising $25k? Especially when he lies and says somebody else can pay higher taxes.
3) it assumes 3% economic growth and that ain't happening for some time, and
4) it still takes til 2040 to balance the budget. We won't be allowed that long. remember we're still on the hook to prop up Wall Street every time it takes itself out.
The core joke of Hitchhiker's Guide to the Galaxy is that of course no civilization would develop personal computers with instant remote database recovery, and then waste this technology to find good drinks.
Steve Jobs has ruined this joke.