Upvoted this for an interesting read, but I agree with the sentiments in the comments that (1) ML is in general hard (2) some parts of ML are not that hard, but

Upvoted this for an interesting read, but I agree with the sentiments in the comments that (1) ML is in general hard (2) some parts of ML are not that hard, but are likely the minority (3) we are standing on the shoulders of giants, who did the hard work.