Igor and Grichka Bogdanoff gained notoriety among Bitcoiners after being featured in YouTube videos where they appear to control the financial world.
The star of a popular crypto meme has passed away aged 72 — days after his twin died from coronavirus.
Igor Bogdanoff, along with his brother Grichka, were best known in France for presenting shows about science.
But they went on to gain notoriety among Bitcoiners after being featured in YouTube videos where they appear to control the financial world.
The meme features them ordering someone on the phone to "pump it" whenever a long-suffering retail investor sells the lows — and "dump it" once they have a change of heart and buy the highs.
Both brothers had denied that their distinctive appearance was the result of plastic surgery.
"Being very athletic, without a gram of fat, they believed that the vaccine was more dangerous. They never got sick."
Igor and Grichka appeared to be pretty pleased that they had appeared in these crypto memes, which went on to have a life of their own on Reddit and Twitter.
In a recent interview, they argued that they predicted back in the 1980s that Bitcoin would exist one day — and hinted that they met Satoshi Nakamoto back in the 1990s.
The twins went on to confirm that they had invested in Ether.