The best way to build a startup is to launch a website for your idea as soon as possible. Sitting on your idea for too long will bring nothing but disappointment. Even if you have a bigger vision, at least ship one feature and get things started.
As The Data thing is growing ( context: giants are buying Data of users ) so opportunities on data science will be increasing soon and demand will increase soon as I feel. for example data analyst, data engineer, data scientist, etc.
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