Ah...dude, you are crazy.
I'll give you a starting point.
In 1989 when we got married and moved into graduate student housing at Stanford, we paid $425 a month for our apartment. We had a 1987 Chevy Nova that we bought used, and our payment on that was $89 a month. We made $40,000 in total that year. We invested $20,000 of that. Why? We figured we would not buy a house in California, so instead of doing that, we invested so that we could buy one somewhere else later on (some of that invested money was a non-retirement mutual fund which oddly enough we kept when we bought a house instead of using it to help buy the house -- wasn't the plan at the time, but that's what we ended up doing).
Do that for 7 years (we even had little increases in there) and then invest NOTHING for 23 more years. If you made 8% annual return (we have made more) and did not invest a penny more, you would have $2,262,117.97 at age 62. Now, don't think of that as being 23 NOW, think of that as being 62 just 9 years from now. Also, remember that we have invested a TON since then.
If you do the 4% rule on (I will round down) $2.2 million, that is $88,000 per year. At age 62 we can add about $50,000 (perhaps a little more) a year from Social Security, so that's a total of $138,000...and again, that's not the true total because I have been investing steadily and heavily for the 23 years following the first 7. Add in that we have no debt including our house free and clear, and that would be more than good enough, even in Southern California where it looks like we are going to retire...and again, these are the true totals. We will be retiring before 62, and likely no later than 56 for me, 55 for her.
It is not hard to end up with some decent money if you begin early and go big early if you can.
Just for sh!ts and giggles, here's what someone has if they invest $15,000 a year beginning at age 23 and ending at different ages (10% return on average annually):
55 - $3.3 million
56 - $3.8 million
57 - $4.05 million
58 - $4.47 million
59 - $4.9 million
60 - $5.4 million
61 - $6 million
62 - $6.62 million
We invested a ton because we were frugal. Most of you apparently COULD invest a ton because you all make $250,00 a year or more, but you don't do it.