What’s your definition of our Blockchain #STEEM in your own 17 words?

I want to explain to my 88 year old grandma 👵 about our Blockchain #STEEM and I need your help

Please tell me in your own words how do you define our Blockchain #STEEM in 17 words and win 1000 SP delegation for next 90 days.

The best 17 words will win 1000 SP delegation within next 24 hours

Thanks a million for your participation