>>>>Has anyone given this a try?
>>>>https://www.aboutamazon.com/news/aws/aws-free-ai-skills-training-courses
>>>
>>>No, because - Amazon. TANSTAAFL
>>
>>I’m old and have limited memory so you will have to help me with “TANSTAAFL”.
>>As for Amazon, obviously you don’t have a wife with an Amazon Prime account and your credit card.
>
>TANSTAAFL. Best source to grok it (pun intended)
>The Moon Is A Harsh Mistress Robert A. Heinlein. ISBN 1473616123 / 978-1473616127

I never understood what is the thing which is as a free lunch. Did he mean „nothing compares to a free lunch“?

Don't tell me he meant „there's no free lunch“ - if he did, he would said exactly so.