What justifies a future with humans in it?

2016 https://onlinelibrary.wiley.com/daoi/pdf/10.1111/bioe.12290?casa_token=-TuhLSm_xhoAAAAA:MN0AHS0GYSWvzIW3BO9M2ab3EVb0sdCZEumYvyU4zMO_rhUYWhnkle_jCoYGeFqIAs7oQ1BIu_Ce5cuhIw Academic paper None