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What is the hardest thing for you to wrap your brain around 
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#1
Dec2612, 09:16 AM

P: 159

Maybe the sheer size of the universe? The speed at which light travels? The size of a quark?
Out of all the things in the universe, what is hardest for you to possibly imagine, as long as it's generally accepted it doesn't have to be proven. For me it's both the size of the universe and the size of a quark. I mean, sitting here trying to wrap my head around how something can be so unbelievably large, yet also thinking how something can be so unbelievably tiny. Kind of ironic a little bit, how something like a solar system is similar to an atom even though their sizes vary beyond belief. 


#2
Dec2612, 10:10 AM

P: 536

I used to have a problem with infinity. I kept using it like it was a number.
For example, I couldn't understand that the amount of numbers between both 0 and 1 and 0 and 2 were both the same. 


#4
Dec2612, 04:20 PM

PF Gold
P: 4,262

What is the hardest thing for you to wrap your brain around
I haven't quite wrapped my brain around it yet.



#5
Dec2612, 04:33 PM

PF Gold
P: 525

The structure of the human eye and how the process of vision functions, and then dreams.



#6
Dec2612, 04:45 PM

P: 2,179

Diamond.



#7
Dec2612, 05:04 PM

P: 194

What is the hardest thing for me to wrap my brain around? Has to have to been a tarmac road surface ... well, I suppose wrapping my skull around the road and my brain around the inside of my skull is technically more accurate.
Other than that it is probably why anything exists at all (and, please, do not try and expound some hypothesis involving quantum theory and zero point energy fluctuations ... such hypotheses presuppose the existence of a quantum field and so on) 


#8
Dec2712, 05:29 AM

P: 570

The Riemann Hypothesis. I don't understand it.
But I'm not even very good at differential equations. 


#9
Dec2712, 05:33 AM

P: 439

The platypus. Need I say more?



#10
Dec2712, 05:54 AM

P: 148

Women...



#11
Dec2712, 07:04 AM

P: 159




#12
Dec2712, 07:07 AM

P: 273




#13
Dec2712, 07:29 AM

P: 772

If you took the number of numbers in between 01 and divided it by the number of numbers between 02, you should get 1/2. Let x be the number of numbers between 01. There are an equal number of numbers between 01 and between 12, so the number of numbers between 02 is x + x, or 2x. So you have x/2x, and even if x is infinity, they cancel (they're the same infinity). I'm sure mathematicians will murder me for doing it that way, since I probably did all kinds of things wrong, but I think that's the general idea. 


#15
Dec2712, 08:23 AM

P: 2,179




#16
Dec2712, 09:50 AM

P: 273




#17
Dec2712, 10:55 AM

P: 21

How and if an inverse tangent function "jumps" from positive infinity to negative infinity.



#18
Dec2712, 12:55 PM

P: 163

Memory.
How tiny chemical reactions and electrical signals can conjure up such vivid memories from 20+ years ago amazes me. Occasionally I have a dream that has been recurring since I was 78 years old (currently 27 years old), and it just fascinates me to think about what all is stored in our brain and how some of it surfaces when you least expect it. 


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