OUTPUT never equals INPUT

in my previous post, i complained that what you get is not what you worked for...i think it is very true. today, i reviewed this again from a Mathematical point of view, or rather, from an Engineer's point of view, since i did graduated as an Engineer, no point wasting my engineering's knowledge... ... ... ... okok, just let me brag about something, alright? next week is exam week, i'm feeling quite tensed here =.=

from an Engineer's point of view, in a practical case, the output will never equal to the input, simply because there is nothing in this world that works with a 100% efficiency. hence, that's it, hehe.

actually, that is just the entree for this post. today, from an incident, i discovered a reason behind the imperfect equation of input=output, that is, what you give is not the exact amount of what the other end receives. thus, no matter how much you give, you cannot demand for same amount or similar amount in return. a very typical example would be a family who runs a family business. most of the times, the parents would not have much time to spend on their children. they provide every material thing that they can afford: the best schools, the best tuition, the best cars, the latest trendy handphones, and etc. but, in the end, can they expect the children to be very obedient? obviously not.

i'm pretty sure that most of this type of parents don't get that, what they give might not be what their children want, and what they give might be not what their children need also. now, from the Contract Law's point of view, a contract exists only when one party does or provides something favorable to another party and the other party pays or do something in return. if what the parents give to their children is not what they want, then how could they expect anything in return? even the Barter System doesn't work like that, right?

sigh, i just want to stress that, apart from providing so many things which you think someone else would like, it is far more better to be at place when you are needed. what is the use for you to be able to give the whole world to me, when you can't be by my side when i needed you most? yes, all the things would make me lead a better and more comfortable life, but i can do without that, and i won't feel "terribly" unhappy without it either. on the other hand, when i need someone to be by my side, to give me support, and all that i have is myself only, what you did, everything that you did before would then mean a lot less, maybe they would even mean nothing anymore... ...

do you believe if i say that i'm practising my writing skills for my law exam next week? i have to write on average 10 full pages in about 3 hours' time. sigh, this is a bad time for exam. no mood to study at all, and it's open book test... ... studying is tough... ...