I think that if you go too much into the bleeding edge, you will cut yourself in so many different ways. Bleeding edge means that it's likely the technology is untested.

I am sure that there are people inside Google who are looking into blockchain. The company has a policy that employees can spend up to 20% of their time (see link) on any topic that they like. This resulted in their employees coming up with ideas that wasn't part of mainstream. It is unclear whether the employees may want to share the blockchain idea to themselves or give back to Google.