Who or what is to blame for obesity in modern world?

To begin with, I think that the main thing to blame for it are our primitive instincts. This is the reason why we like sugar so much in the first place. However, the food companies started exploiting it, using sugar as a cheap additive used to increase the taste of the product, which will result in customers choosing that maker again, because of how nice it tasted and satisfied our brain. Still, we are also to blame. We get to choose what we eat and falling thousands of times for the same marketting trick each year, we are responsible for our bad diet habits. I don't mean that we should only buy special, expensive and eco-firendly products, but we should study the table of contents carefully and sometimes spend something extra if it is worth it.

Should people spend money on space exploration?

   In my opinion this is quite a tough one. I am not a scientist or a physicist of any kind, but I'll try to make my arguments sound good.
   To begin with, I consider space exploration something essential. We still don't know much about space. We've barely touched it. We don't know what lies ahead of us. We might find new life forms or a solution to the problems we have. We might find new useful minerals. What is more, by developing new space shuttles etc. aviation may benefit, which will result in better travel.
   To sum up, in my opinion we need to explore space even if it involves money and sacrifice, because it will help us achieve a nicer future.