/sci/ - Science & Math

In the previous 1-3 threads one anon said that 4 last months of phd funding is too late to prepare a plan B outside of academia to another anon who was sick of the mainstream attitude of academics.

I'm just starting my phd and at first I like the idea of preparing for a good plan B, but it doesn't seem that much worth to invest like 1h/day average to learn coding or whatever while I have the opportunity to make my main plan work. I can't say I'm as enthusiastic for a plan B as I am for math, and all the time I can get either improving for it or rewinding is important. Plus I'm on pure mathematics, not even close to probability which could be useful for going into the private sector or something.
It seems to me that an all in is better, and if I decide to not get into academia I'll just pay the price and start a plan B from scratch.