Life on earth will go on without us, but we are the custodians and guardians of something very special and unique in terms of conscious intelligence. I believe it is therefore our duty to protect that unique feature of life and carry it forward into the unknown. As a species we need to leave earth, we need to take life and our consciousness of it beyond our solar system in order to protect it from the time relative constraints that would eventually undermine it here on earth.
My idea is that you should always focus on solving the current problems that block humanity from progressing in the ultimate goal of protecting and nurturing life and carrying it beyond earth and throughout the universe.
You can't solve colonialism, climate change, capitalism, pseudo-democracy, it's too late for that, but you can work towards building knowledge that will enable the next generation of children to further develop and explore and successfully leave earth.
My main focus will be biological/molecular computing, harnessing bioenergy and assistive biotech for space travel.