Comment by timrosenblatt

FWIW "Billions of dollars" should be considered in the context that 1 million people * $1,000 = $1 billion. The US is ~300m people. So, this headline is something like "1/3 of 1% of the US is putting an extra $1,000 in their 401k recently" (really more like 1-2% of the _workforce_ but the point remains)