Pk70 Ji,

What you've expresses here is similar to the quality of gold during different times. Gold which was considered 100% pure had many impurities in the olden times because people had not yet developed the technology to separate those impurities.

__________________
Whether you are a small time entrepreneur, or the CEO of a large corporation, you cannot escape the daily challenges of business.
You may be equipped with adequate resources, but without determination and drive you will not be able to take on new challenges.