"No one should expect building a new high-growth, software-powered company in an established industry to be easy. It's brutally difficult"

This quote by Marc Andreessen talks to the trouble of developing an effective company in a recognized market. He is saying that it is difficult to build a high-growth, software-powered company in an industry that is already developed. It is an uphill struggle that requires a great deal of hard work and devotion. It is not something that can be done overnight and it will take a lot of effort and time to make it successful. He is warning that it is a tough process and that no one must anticipate it to be simple. He is emphasizing that it is a ruthless procedure which it will take a lot of devotion and perseverance to make it successful.