It was a sarcastic remark. My original comment's gist was that all of the naysayers, at least with respect to the amount of funding required, are basing their analysis on a faulty assumption. So far, we've seen a very narrow niche of people, with very specific interests, fund successful kickstarters on the order of $1,000,000 to $10,000,000. In _contrast_, the demographic of people that would likely be interested in funding cancer research is potentially 1,000 to 10,000 times larger than the 18-35 year old, white American male STEM worker with disposable income and a poor understanding of the realities of electronics manufacturing demographic.
My Bad. Though, the original comment "compare cancer with Pebble" didn't deserve a reply. Just trolling, you're comparing funding campaign building both, not the experiences of both.
Thus, $1,000,000,000 is not unreasonable at all.