Can VLSI IC design technology is important in todays world?

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Very Large Scale Integrated Circuit technology is important in todays world.I say it is important in todays world.All electronic things run on power.IC requires power that means that if IC is small it consume less power & save electricty which is limited in todays world Now a days many equipment run on IC which is main part of the any machine.VLSI technology save energy for future use . What is your opinion?