Wow, what a rush of emotions to go through in one day. This book has given me more existential crises than I've ever had in such a short amount of time. I even went and asked all my friends if they would save the planet if they had the option—of course they all said yes. I loved this book because it captured so many of the problems in the world today, such a depression and not seeking help. I like that both Henry and the readers kind of knew the whole time that he was like Jesse, but neither of us wanted to acknowledge it. The aliens thing weirded me out in the beginning at first, but by the end I loved it. I should feel disappointed in the ending of this book, but the meaning behind it is so... I can't even describe it. Perfect isn't the right word, but it's the closest thing I can come up with. The last chapter was my absolute favorite, but if you read it before reading the rest of the book then it will completely ruin the quality of it. I recommend this to anyone, especially people that enjoy books about mental health and teen angst.