have more of both. today the elderly make up 13% of the population. by 2050, they are expected to be 20%. that means you'll need to spend a lot more on social security and medicare. and we hope will keep happening and that will push the cost higher. the future turns out to be expensive. that's simply the reality of it. and opposing tax increases doesn't change that reality. there's nothing in grover norquist's pledge that stops the ageing process. so there's no way the tax receipts of the 1960s will support the demographics of america in the 2030s. anyone who says otherwise is not taking the reality seriously. joining us is a man who always takes reality seriously. chris hayes. so one thing i always think is true in our political discussions is we don't like to face up to big changes. we like to use them as evidence for whatever policies are adapting. but the ageing of the society, i