Why space development necessary

Q why space development necessary ?

A 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

in fact, space development will solve 3 problems.

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