Ok, I want to make it more specifically that:
A, my reasons for not continue with biology:
1, not interested, actually say I have no feeling of it. it would be struggling and suffering if continued with that.
2, something like CharonY said, "Biology is a bit too much of a jack-of-all-trades", and i don't like that way.
3, the job market of biology is not good, so far as i know. I know money is not everything but it's absolutely important.
(it’s a long story about why I learned genetics……..)
B, the reasons for getting Phd:
1, saying of "'glass ceiling'" in industry and I've read it somewhere in this forum, maybe "MBA vs PHD"? but i am not sure if it's true for non-life science industry.
2, i think i have time and energy to fullfill it before it's too late.
3, I want to get a Phd
C, the reasons for talking about business:
1, good job market
2, i think it's more about math and abstract stuff, to which i am interested and confident.
i don't know if i made it more clear or even more confusing, give me your opinions, tks.