How do I know products/ industries that would soon fade out?

[King Belieal]

There are certain products that used to boom in times past but they are no longer booming because they have faded and fizzled out.

How can I know the products or industries that are soon going to fade out completely in order to avoid entering such industries or entering to deal with such products?

 

[Fidelia]

When the product or industry is still using old technology, just know that the industry would soon go outdated. And there would be evolution that would sweep the industry aside.

 

[Augusta]

They stop funding the business and paying their workers. The owner of the business become nonchalant towards the business