yes polartec is synthetic: polyester
cheez whiz vs. real cheese
egg beaters vs real eggs
juice drinks vs real juice
tofurkey vs turkey
wonder vs wheat
live theatre vs a movie (?)
fake plants vs real ones
2015 Liv Intrigue 2
Pro Mongoose Titanium Singlespeed
2012 Trek Madone 4.6 Compact SRAM
music made with instruments vs. music made using a computer
2014 Bobbin Bramble / Brooks B67
2008 Rodriguez Rainier Mirage / Terry Butterfly Tri Gel
2007 Dahon Speed Pro TT / Biologic Velvet
I wouldn't call food substitutes synthetic, per se...they aren't really made of synthetic ingredients, just highly-processed ones with little nutritional value (or downright healthy). Different than a comparison of sugar vs. artificial sweeteners, which are entirely of synthetic chemical. HFCS is still natural sugar, just not a healthy natural. Nutrasweet is not natural.
The theatre/movie thing is a cool comparison, though. That could even be a discussion of 3D/tangible vs. 2D/intangible.
Kirsten
run/bike log
zoomylicious
'11 Cannondale SuperSix 4 Rival
'12 Salsa Mukluk 3
'14 Seven Mudhoney S Ti/disc/Di2
Stuffed animals vs. real animals
Dolls or puppets vs. real people
Fake snow (used for holiday decorating) vs. real snow
Wigs vs. real hair...or for that matter, hair extentions
Acrylic nails
False eyelashes
Dentures
prosthetics
2014 Bobbin Bramble / Brooks B67
2008 Rodriguez Rainier Mirage / Terry Butterfly Tri Gel
2007 Dahon Speed Pro TT / Biologic Velvet
Kirsten
run/bike log
zoomylicious
'11 Cannondale SuperSix 4 Rival
'12 Salsa Mukluk 3
'14 Seven Mudhoney S Ti/disc/Di2
Sports drinks
2008 Trek FX 7.2/Terry Cite X
2009 Jamis Aurora/Brooks B-68
2010 Trek FX 7.6 WSD/stock bontrager