Fusion is scientifically possible; executing it in a cost effective way is just an engineering challenge. That doesn't mean it'll happen, soon or ever, but it'

Fusion is scientifically possible; executing it in a cost effective way is just an engineering challenge. That doesn't mean it'll happen, soon or ever, but it's a valid gamble. Yes, the history of fusion has been long and full of false starts, but it's undeniable that huge progress has been made, and it's hardly absurd to think the journey is finally drawing to a close. Magic wands, warp drives, aliens, or colonising parallel worlds are not comparable. They are not, as far as we know, scientifically possible, and no progress has been made towards them.