A chart means more than any word or long paragraph so let's firstly dive into above chart which was graphed by Jameson Lopp.

He made it with input data from Bitcoin Obituaries.

This summary chart presents a fact that less people wanted to call "Bitcoin is dead" with time. It is an unofficial recognition for survival of Bitcoin.

There is another website for "Bitcoin is dead" chart is Buybitcoinworldwide.com but the team behind it stopped updating the chart recent months.