I just told you the salaries have gone up so that is not the reason. I can see that at the top there is no shortage but what I am saying is that there are way fewer people joining aviation at the bottom and without those numbers the pyramid will fall. The 1500/ATP rule had nothing to do with safety. Frankly I don't know why it was enacted because it can only hurt. Most airlines would not promote to command until a few thousand hours at least and a SIC in the right seat would at least be getting training in the areas of operation. Now the potential SIC has to get the hours outside, perhaps flight instructing, gaining no useful experience in the business, before being even able to apply for the first job.
Now the numbers of beginners is way low and the effect on the top after a few more years will be just as bad as it is now at the lower levels of the industry, such as Part 135.