Just read about T:
<div><br></div><div><a href="http://mumble.net/~jar/tproject/index.html">http://mumble.net/~jar/tproject/index.html</a>
</div><div><br></div><div><a href="http://www.paulgraham.com/thist.html">http://www.paulgraham.com/thist.html</a>
</div><div><br></div><div>Did it inspire any particular features of Racket?</div><div><br>Just curious sorry if off topic, kill post as you see fit.</div>