If the universe is 13.8B years old, how can we see 46B light years away? (2018)
If you are turning in bed and can&#x27;t sleep I&#x27;ll give you some questions to think about. Even though some are non-sensical in a way, they are a good starting point to ponder about:<p>- Is space really flat (infinite) or curved (finite)?<p>- If it is flat and the universe had the beginning (big bang) then does it just have &quot;potential infinity&quot;, by ever-expanding?<p>- If it is curved is it implied that it is encompassed by something that has at lease 3+1 dimension into which it is curving?<p>- What would happen if you would happen to stand at the edge of space&#x2F;universe and push a hand through the edge?<p>- Space could be infinite but at the same time with a boundary. Can you imagine that boundary without trying to imagine what it is bounded from?<p>- Where does new space, created by the universe expansion, come from?<p>- What is space fabric actually made from? Is it discrete or not.<p>- Are there other universes outside ours?<p>- If there are, do we live in an infinite Russian doll type of universes?<p>- What gives the initial conditions and laws in the universe?<p>- If the universe is cyclic or there is a multiverse, are there universes with totally different laws and if yes what generated&#x2F;allowed that?<p>- Try to imagine nothing.<p>- Try to imagine infinite.<p>- You can&#x27;t imagine how any of these 2 things would work (nothing or infinite), but one or both must exist. Either all existence existed in some way forever, or it had some genesis from nothing.<p>- Is there free will?<p>- Can you even imagine a proper mechanism that would allow for free will to exist?<p>- What would prevent you from &quot;cutting&quot; the smallest possible particle in 2 parts?<p>- Are there several dimensions of time?<p>- Is there a beginning of time?<p>- Is math invented or discovered?<p>- Can we ever, in theory, discover every law in the universe if we are looking at it only from the inside.<p>- Try to imagine 4.5 billion years of evolution (or more if life crashed to earth from a comet). How many organisms lived, and died, how many actions were made, how many found a partner and reproduced for you to be here and read this text at these exact moment. How many chances for failure at any point in that period were there?<p>...<p>Enough for tonight. Happy dreaming.