Jupiter just made one of it's closest-approaches yesterday, perhaps a little gravitational change goes a long way? Jupe is also on an 11.86 year cycle, and that seems to correlate with the eruption in 2006, or maybe our math is wrong?

Cryptocurrency interest?
https://steemit.com/cryptocurrency/@harpooninvestor/the-great-currency-bubble-is-ending-what-will-we-see-from-here-on