Gary Shilling explains why he won't invest in bitcoin

• Financial Forecaster Gary Shilling Won't Invest In a 'Black Box' Like Bitcoin
• Financial forecaster Gary Shilling became the latest market analyst to critique cryptocurrencies, remarking yesterday that he views the technology as a "black box" he would not invest in.

He told the publication:

"I'm just very suspicious of things that are not transparent. If I can't understand it, I don't want to invest in it."