Doxory?

ternus has decided As a member of the class of 2010, I can choose to take the new Course 6 degree path or the old one.

Asked 2 years ago

My choice: Stick with what works. There are a lot of new, untested classes in the new curriculum, and you don't know if they'll be good. Besides, there are opportunities to substitute new classes for old ones if one of them turns out to be cool. (And you get to say "Back in the day...")

aletta
I get leary when MIT makes major changes.
nelhage
I'm dubious of many of the new classes. Of course, that's not to say the old ones aren't broken.
lakmiseiru
The new curriculum is untested and unlikely to be stable until it's been taught for at least one generation of students. Don't be the administration's test case; stick with what's safe. It does have its problems, but that's true of everything, and there's no sense inviting trouble. Plus the upperclassmen can give you advice on what to take, which they can't with the new stuff. And, like you said, you can always switch.
kyrandil
for 6-1 you unequivocally don't want the new track because they just s/6.001 and a fun lab/6.01 and 6.02/; for 6-2 and 6-3 i'd be very wary; the first-time classes (and there are many kinds of first time here) tend to be really annoying
ntn
Wait for the kinks to be worked out.
cshiley
The first year of any curriculum change is full of bugs. Don't do it unless you've got a compelling reason.

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Take the new curriculum! Some of the classes look nice, and it seems like it'll be easier. Also, the old curriculum does have its problems...

jtu
Experimental classes can be fun, and usually running into bugs isn't too bad (the worst bug I ran into was a lab the profs thought would take 3 hours taking 17 hours -- they were sorry afterwards ;) Also, it looks like some really good professors teaching the experimental classes.
glasser
The profs in the department who care about teaching are doing the new curriculum, to first approximation. And the most important element in class choice is always the staff.
wdaher
You'll get screwed by old classes changing underneath you if you go the old way.
Yoyo
Every laboratory needs its guinea pigs. (Sorry, that probably won't make you feel any better about it.)

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Skipped (with comments)

seph
first year curriculums are usually buggy.

If you make a stupid choice because a website tells you to, it's your own damn fault.