Will indoor gardening solve all our hunger needs?

[Jayson]

I mean, they could provide food on Mars, in Siberia, in the Gobi Desert, you name it!  However, though, the price for indoor gardening is so high - it could be impractical for supporting large numbers of people in those areas.  OK, what adjustments could possibly be made to lower the cost?  Do you see indoor gardening as the only hope for human survival - given population growth?