Ethereal Summit | 358 followers on LinkedIn. Ethereal is a global series of conferences connecting the leading companies & influencers shaping blockchain technology. | What some call the “SXSW of blockchain”, Ethereal brings futurists, entrepreneurs, investors, media icons, government officials, artists, musicians, and humanitarians for a day of storytelling and knowledge sharing. Ethereal is the nexus between technology and the people who change the world.