For those that aren't kids: https://bitcointalk.org/index.php?topic=1364594.0

(AT has been running "live" for over one year on two separate blockchains without any serious issue and supports parallelisation of smart contracts)

Let the others "play with their Lego".

(and don't forget that the Myth Busters did show that you can't make too big a ball of Lego and expect it to roll properly)