Statements like the title of this article make no sense to me. They suggest nothing ever changes and external forces have no effect. 50 years of technology and markets suggests very few things don't change.

Look at the auto industry. Look at the state of finance and banking. Lots of changes that hit like a ton of bricks. It's probably safe to say Samsung is a safe investment. But calling it 'uncatchable' leaves the suggestion that it's not at the mercy of the markets for some reason.

But then again, I digress. The reporter has his job, which is to get people to read his article.

Capex = Capital Expenditure (Spending/Investment)

And, I thought this was an interesting definition for DRAM:

...for DRAM, which temporarily holds data and helps computer processors run multiple programs simultaneously....