Comment What are the numbers actually telling us? (Score 3, Insightful) 247
Over half of those companies are very young, Apple and Adobe being the outliers. If they hired young, their workforce will still be young. The numbers themselves do not say that older people are being forced out.
At least half of those companies also experienced phenomenal growth in recent years. There is a good chance that a subset of the early employees could afford to leave the company (stock options, rapidly being promoted, etc.). Those who were stuck in dead end positions had plenty of examples to encourage jumping ship for better opportunities. Again, age statistics alone cannot tell us much on that front.
Of course, simply reporting the median age alone does not say much about the age distribution. It implies a normal distribution, which is where I suspect the 40 year old figure comes from, yet that may be misleading.