1. Gambling is not time consuming while stock investing can last several years.
2. In stock investment you can limit your loses, if you notice that your stocks are unstable, you sell it.
3. Reading stock market is something that can be done more of less, you can never predict outcome of your gambling session.
4. In stock investment the more you can buy the better you end. With gambling there is no guarantee.
5. Gambling is pure luck based game. From the other hand with the right research, you are very unlikely to lose in stock investing. With Gambling you can always lose.
Yes gambling is not consuming because any way one will going to lose their money so again no need to waste time in research
That is correct, if any one gambling means it is more likely they may be losing that money at the end but in some cases it also need lot time to predict the end results. For example, in house racing people go mad in doing research work on jockey and horse for hours or even few days of analysis before betting so in both cases time is required.
Yes it is true. Gambling also need a time to think who can win if betting in any sports so just take money and can't bet on someone. Both gambling and investing in stocks need time to check the history and need to take a decision. However to play games like dice no need of any thinking just need a luck.