# Tips / Tip of the day / Today I Learned category

**URL:** <https://racket.discourse.group/t/tips-tip-of-the-day-today-i-learned-category/937>\
**Category:** Site Feedback\
**Created:** [April 29, 2022, 5:23pm UTC](https://racket.discourse.group/t/tips-tip-of-the-day-today-i-learned-category/937 "2022-04-29T17:23:02Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![spdegabrielle](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/spdegabrielle/32/95_2.png) [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\
**Post date:** [May 1, 2022, 11:48am UTC](https://racket.discourse.group/t/tips-tip-of-the-day-today-i-learned-category/937/6 "2022-05-01T11:48:24Z")

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> [@alexh](#):
>
> There would have been even more to learn if the TIL was rephrased as a question, and we already have a "Questions" category.

Yes, using existing categories may be a better choice: we have categories for both #Questions & Answers and #Show & Tell, and Discourse supports [tags](https://racket.dpoiscourse.group/tags) so users can tag posts in any category as #today-i-learnt.

So I'll delay creating a distinct category for a #today-i-learnt category for now, with the suggestion users posting a 'today I learnt' tip to any category use the tag #today-i-learnt rather than #TIL.

> [@sschwarzer](#):
>
> I learned the meaning of "TIL" only relatively recently

The comments that acronyms like TIL, ToTD, being opaque to new users is a valuable point. Let's try avoid uncommon acronyms to keep this site welcoming to new users.

Best regards,  
Stephen

PS like categories, users can [mute tags in preferences](https://racket.discourse.group/my/preferences/tags) so they don't get notifications for tags that are not relevant to them.

PPS There were a number of great tips on the [Racket Slack](https://racket.slack.com/) but sadly I can no longer find them ☹

PPPS

> [@alexh](#):
>
> > I noticed that `s-exp->fasl` can be much faster when writing the data through a port instead of obtaining the FASL value and writing it to disk separately. Why is this the case?
> 
> So, does anyone here know why this is faster? 🙂

I'd like to know this too! 🙂

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_[View the full topic](https://racket.discourse.group/t/tips-tip-of-the-day-today-i-learned-category/937)._