eb2·3 年前·議論Yes, Alex Gerko is the UKs biggest tax payer and regularly donates to schools/universities math departments
eb2·3 年前·議論Saying his project is very similar to tell.it is like saying hackernews is very similar to Facebook because they both have text boxes and a reply button.
eb2·3 年前·議論Have you considered that if your trackable focus time is mostly offline, you’re not the intended user?
eb2·3 年前·議論Really surprised nobody has said babbel, great app with a good mix of grammar, explanation, useful vocabulary and spaced repetition based review.
eb2·4 年前·議論You don’t need parent because you can use a breadcrumb stack to track parents.You want sibling nodes otherwise you will have to traverse back to the root node sometimes to find a sibling.