You can write it, but the syntax is different. Look at
https://docutils.sourceforge.io/docs/user/rst/quickstart.html and compare it to
https://www.dokuwiki.org/wiki:syntax. Examples:
Indenting text:
* DW - code block
* RST - indented paragraph
Text styles:
* DW - **bold**, //italics// and several others
* RST - **bold**, *italics*
Lists:
* DW: * for unordered, - for ordered
* RST: multiple possibilities but requires explicit ordering.
Sections:
Totally different syntaxes.
-- and plenty more I'm afraid. :-(