Why don't SINGAPORE do this instead of producing nothing except fear

Why don't SINGAPORE do this instead of producing nothing except fear due to dependency everything foreign.


This solar powered floating farm can produce 20 tons of vegetables every day, desalinate saltwater.
Each module is anticipated to make 8,152 tons of vegetables every year and bring in 1,703 tons of fish.



https://www.minds.com/blog/view/447430685691482112/this-solar-powered-floating-farm-can-produce-20-tons-of-vegetables-every-day

Fear is a much more useful gdp product than fish seawater and vegetables.