Started my first business in 1974, been going strong since. My business portfolio is varied. Recent focus has been setting up 10,000+ reqs/sec WordPress sites. Most hosting companies can barely make 10 reqs/sec. Anyone expert who tells you "WordPress is slow"... Do a 180 + run, as likely their incompetence is pervasive. For example, SERP Shaker WordPress sites I've been setting up recently clock in at 7,000+ reqs/sec. In November + December 2014, one of my clients ran sustained traffic, all day, every day of 100,000+ unique visitors/second on a $100/month dedicated server machine at a load of 5%-10% of capacity. If you site is slow remember, site speed depends primarily on the tuning of the server machine where your site is running.
Sure this is easy.
You'll require a massive amount of cash. If you have to ask "how much cash", then you won't explore AI.
Once you've determined your AI tech, then you'll go through a multi-year process of Knowledge Acquisition, where you extract knowledge of your entire manual process from every person engaged in the current manual process.
Begin training your neural nets.
After a few years... to a decade... you'll have a Poe'esque (Ala "Altered Carbon") level AI to do your graphic design for you... auto-magically...
I remember going through this process at MCI Telecommunications years ago.
Fairly straight forward.
Just took $1,000,000s of hard cash over a 10+ year period to convert their switching tech to AI'esque style logic.
Dirt simple answer.
I'm always amused by this question.
Every project I've ever started always started with an idea, then dream up some product (or service or information).
Make one manual sale by end of day.
I figure if I come up with an idea in the morning + can't sell 1x unit manually (by hook or crook) by end of day...
I best get a new idea.
Depends on how the leads were generated + many other questions.
Read a few Dan Kennedy books or hire someone to help you.
For example, if you email a cold list of 60K email addresses, you're sending IP(s) + domain could be RBL'ed for a very long time.
If you send postcards to physical addresses, cost will be higher + you won't be RBL'ed.
Also important is first step of your marketing funnel, your lead magnet... then value loops various lead magnets suggest... then ascension paths to higher price point offerings.
Marketing is Marketing.
No difference between any niche/industry.
Same rules always apply.
Tip: You'll only do this if you're a Thrillseeker looking to loose massive revenue.
You'll never, ever, ever turn over design of any business critical system to anyone in the class of "junior anything" who requires "SQL courses".
You'll have an experienced designer handle your SQL design.
S3 (anything Amazon) is most costly approach you can take.
Best you book a call with me or someone who works on this type of project daily.
For EBS/NFS, all slow/glitchy tech. You'll only use this type tech if you love daily aggravation + have infinite free time to debug problems.
Better solution, use OVH data storage servers, then run Linux on these along with whatever distributive/network filesystem is required for your workflows.
Since you don't mention type of workflow, no guess what a better answer than NFS might be.
Take a short inventory.
Consider what books you read, content you consume, conversation topics you find highly engaging, any activity where time stops for you.
Take an intersection of these, looking for so activity...
1) You've done daily for last 10+ years.
2) You'll likely do daily for next 10+ years.
Design a business around this activity.
Tip: Business success relates to consistency over time.
Anything you can stick with, likely will produce good success...
Rather than picking something new... or exciting (never trust anything exciting), look for what already engages you now.
First: Get out of California.
Move to Texas or Tennessee or Florida, where taxes are far lower.
This single step will solve many problems.
Next: Work with an attorney to answer your questions.
Also a tax professional.
Cheapest tax professional you can hire is H&R Block Executive Tax Services.
This is a special... fairly unknown part of H&R Block which deals exclusively with complex + multi-jurisdictional entities.
You'll find no better expertise/intelligence any cheaper than H&R Block Executive Tax Services.
Tip: For every 6 figures income elsewhere, Clarity generates a few dollars.
Far better to do this...
1) Set your income/month target.
2) Set your hours/week worked target.
3) Timeline to reach #1 + #2.
4) Work out your offerings (price points of goods/services/information) you'll provide to implement #3.
5) Then locate people who've achieved your goals already. Hire them to assist you. Skip all the way to the bank.
6) Tip: You said "I can promote any business or product or service to millions of people world-wide."
Then... best you do this... and you'll be rich...
You'll always generate far more income marketing whatever you're selling directly to a large audience (B2C) rather than a smaller audience (B2B).
Tip: And there's a trade off.
When going B2C the only way to get rich + still have a life, is to design your business where...
Marketing + Sales + Fulfillment + Support + Billing all runs on automatic.
Implementing automatic style businesses ensures a near infinite ROI (return on investment), where expenses are near zero, so profit becomes astronomical.