SICP chapters 4&5

So I've decided to finally read SICP and achieve satori. But looking through the contents left me with a few questions.
http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-4.html#%_toc_start
Chapters 4 and 5, should I read them?
What do they mean by constructing a new language? Is it simply constructing something within the program or is it REALLY making a new language i.g. python, java, ect.
Register machines, should I learn them?
I just want to be able to design my programs well and find more elegant solutions. It seems like this book is what I need.

What do they mean by constructing a new language? Is it simply constructing something within the program or is it REALLY making a new language i.g. python, java, ect.
None of the two.

READ SICP implies reading the entire book and not cherry-picking chapters. 

>Is it simply constructing something within the program or is it REALLY making a new language

It's both.

>>2
>>3
pime taradox

>>1
i.g.
ect.
Die painfully.

>>5
I lol'd

Chapter five is the shit, though, seriously, it is what makes the whole book worth it if you make it to it.

my, look at the nicely layed out html document using tex2page
highly recommended for webpage creation

>>5
You have issues.

>>9
People shouldn't try to look smart by interjecting random Latin if they don't have the slightest idea what the words they're trying to use even look like.

>>9
Are you the same ``You have issues'' guy who told me the same thing a few weeks ago?

>>11
Yes. It really played on your mind, didn't it?

>>12
Not really. It just made me think ``That guy has issues.''

>>13
You're just projecting. You think because you have issues, everyone has issues.

>>14
Go back to hell, Sigmund.

>>15
Actually, he escpaed from the holodeck

>>16
you're hilarious

Actually, he escpaed from the holodeck
he escpaed from
escpaed
cp

>>18
Yes, that would have been humourous at /b/.

humorous

>>18
Ahaha, Star Trek jokes always crack me up!

this thread

>>20
go back to america

I'm going to keep saying ``humourous'' until someone notices that there's no such word.

>>24
What is wrong with ⁶⁶huomourous⁹⁹?

>>25
It's obsolete^[1]

References                            
1. http://en.wiktionary.org/wiki/humourous

<

All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy
 All work and no play makes Jack a dull boy

bampu pantsu