New thing (s) / idea (s) learnt each day_6

Considering what Seth Godin has said in his blog, entitled "Redoubling to system failure"

Every 18 months for the last decade, the world has doubled the data it pushes to you.

Twice as much email, twice as many friend requests, twice as many sites to check, twice as many devices."

......

My question is "Will email blast still an effective marketing tool? or, Does email blast a great marketing tool after all?"