And to say if it was possible to create a strain as that (remember anythings possible if you put your mind to it) its more likely to be found in the "certain" types of high (maybe) so ima split it up, Indica strains seem to be more for medicinal purposes on the other hand Sativa might bring out the emotion of being happy since it is a very uplifting high (kind of like yin and yang?) one might say you could be more open to being social instead of zoning out with the completly "stoned" feeling, I would seem to think if you were going for such an aim maybe somthing that makes people excited to smoke by the smell/colors or more of a head buzz instead of a body buzz, see i dont want to dig to deep into this thread but a body buzz and feeling more relaxed might actually make you more open to laughing and enjoyment with friends too!, whatever it may be its still an interesting thread and idea. (I really dont think anything could " guarantee happyness" it might make you feel better for the time being some people own millions of dollars and arent happy with that so they go and make more, some people enjoy the lifes they have more then anything its alot about personal preference.) - Pe@ce