Why space development necessary

why space development necessary ?

   3 Must Happen events in future are reason.

   1⃣ population problem
   2⃣ lack of resource
   3⃣ energy consume increase, with growth of number of electric systems

   space development solve next 3 problems.

   1⃣ human population problem
   2⃣ lack of resource, may happens on planet
   3⃣ energy emission into 1 planet vs global warming